Breve Análise do Smartphone Xiaomi Redmi Note 9 - O melhor Redmi 9 com uma câmera quadrupla de 64-MP

Name: Xiaomi Redmi Note 9
Brand: Xiaomi

Pequenas diferenças com grandes efeitos

No papel, o Redmi Note 9 é uma versão ligeiramente melhorada de seu irmão Redmi 9. No entanto, essas pequenas melhorias na folha de especificações se manifestam em diferenças perceptíveis na operação diária. Descubra abaixo como o smartphone da Xiaomi se saiu em nosso teste.

Marcus Herbrich, 👁 Daniel Schmidt (traduzido por Ricardo Soto), Published 09/20/2020 🇺🇸 🇩🇪 ...

Android Smartphone Touchscreen

Test device courtesy of notebooksbilliger.de

Download your licensed rating image as PNG / SVG

Xiaomi Redmi Note 9 (Redmi Note 12 Serie)

Processador

Mediatek Helio G85 8 x 1.8 - 2 GHz, Cortex-A75 / A55

Placa gráfica

ARM Mali-G52 MP2

Memória

3 GB

Pantalha

6.53 polegadas 19.5:9, 2340 x 1080 pixel 395 PPI, Tela táctil capacitiva, IPS LCD, Gorilla Glass 5, Brilhante: sim, 60 Hz

Disco rígido

64 GB eMMC Flash, 64 GB

, 47.5 GB livre

Conexões

1 USB 2.0, Conexões Audio: Porta de áudio de 3,5 mm, Card Reader: Cartão microSD, 1 Leitor de Impressões Digitais, NFC, Brightness Sensor, Sensores: Sensor de proximidade, sensor de aceleração, giroscópio, bússola digital, USB C, Miracast, emissor de IV, revestimento nano

Funcionamento em rede

802.11 a/b/g/n/ac (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/), Bluetooth 5.0, GSM: B2/3/5/8; WCDMA: B1/2/4/5/8; FDD-LTE: B1/2/3/4/5/7/8/20/28, TDD-LTE: B38/40/41, Dual SIM, LTE, GPS

Tamanho

altura x largura x profundidade (em mm): 8.9 x 162.3 x 77.2

Bateria

5020 mAh Lítio-Polímero

Charging

fast charging / Quickcharge

Sistema Operativo

Android 10

Camera

Primary Camera: 48 MPix (f/1.8, 26mm, 1/2.0", 0.8µm) + 8MP (f/2.2, 118˚, 1/4.0", 1.12µm) + 2 MP (f/2.4) + 2 MP (f/2.4), Camera2 API: full
Secondary Camera: 13 MPix (f/2.3, 29mm, 1/3.1", 1.12 µm)

Características adicionais

Alto falantes: mono, Teclado: vỉrtual, Carregador modular, cabo USB Type-C, SIM tool, manual do usuário, cartão de garantia, MiUI 12, 12 Meses Garantia, Widevine L1, SAR (head: 0.8 W/kg, body: 1.14 W/kg) , fanless

peso

199 g, Suprimento de energia: 87 g

Preço

199 Euro

Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

see all specifications

Comparison devices

Rating	Date	Model	Weight	Drive	Size	Resolution
79.9 % v7 ^(old)	09/2020	Xiaomi Redmi Note 9 Helio G85, Mali-G52 MP2	199 g	64 GB eMMC Flash	6.53"	2340x1080
77.8 % v7 ^(old)	06/2020	Xiaomi Redmi 9 Helio G80, Mali-G52 MP2	198 g	32 GB eMMC Flash	6.53"	2340x1080
80.7 % v7 ^(old)	05/2020	Xiaomi Redmi Note 9S SD 720G, Adreno 618	209 g	128 GB UFS 2.0 Flash	6.67"	2400x1080
76.4 % v7 ^(old)	06/2020	Samsung Galaxy A21s Exynos 850, Mali-G52 MP1	192 g	32 GB eMMC Flash	6.50"	1600x720
78.2 % v7 ^(old)	06/2020	Realme 6i Helio G80, Mali-G52 MP2	199 g	128 GB eMMC Flash	6.50"	1600x720
75.1 % v7 ^(old)	06/2020	Sony Xperia L4 Helio P22 MT6762, PowerVR GE8320	178 g	64 GB eMMC Flash	6.20"	1680x720

Size Comparison

Networking
iperf3 transmit AX12
Xiaomi Redmi 9 Mali-G52 MP2, Helio G80, 32 GB eMMC Flash	348 (325^min - 355^max) MBit/s 0%
Xiaomi Redmi Note 9 Mali-G52 MP2, Helio G85, 64 GB eMMC Flash	347 (172^min - 352^max) MBit/s
Samsung Galaxy A21s Mali-G52 MP1, Exynos 850, 32 GB eMMC Flash	310 (269^min - 342^max) MBit/s -11%
Xiaomi Redmi Note 9S Adreno 618, SD 720G, 128 GB UFS 2.0 Flash	256 (247^min - 263^max) MBit/s -26%
Sony Xperia L4 PowerVR GE8320, Helio P22 MT6762, 64 GB eMMC Flash	109 (103^min - 114^max) MBit/s -69%
Realme 6i Mali-G52 MP2, Helio G80, 128 GB eMMC Flash	66.5 (34^min - 69^max) MBit/s -81%
iperf3 receive AX12
Xiaomi Redmi Note 9 Mali-G52 MP2, Helio G85, 64 GB eMMC Flash	355 (327^min - 366^max) MBit/s
Samsung Galaxy A21s Mali-G52 MP1, Exynos 850, 32 GB eMMC Flash	326 (280^min - 333^max) MBit/s -8%
Xiaomi Redmi 9 Mali-G52 MP2, Helio G80, 32 GB eMMC Flash	308 (290^min - 337^max) MBit/s -13%
Xiaomi Redmi Note 9S Adreno 618, SD 720G, 128 GB UFS 2.0 Flash	286 (225^min - 321^max) MBit/s -19%
Sony Xperia L4 PowerVR GE8320, Helio P22 MT6762, 64 GB eMMC Flash	120 (106^min - 124^max) MBit/s -66%
Realme 6i Mali-G52 MP2, Helio G80, 128 GB eMMC Flash	36.1 (9^min - 57^max) MBit/s -90%

Xiaomi Redmi Note 9; iperf3 receive AX12; iperf 3.1.3: Ø350 (327-366)

Xiaomi Redmi Note 9; iperf3 transmit AX12; iperf 3.1.3: Ø341 (172-352)

Image Comparison

Choose a scene and navigate within the first image. One click changes the position on touchscreens. One click on the zoomed-in image opens the original in a new window. The first image shows the scaled photograph of the test device.

Wide angle Low light 5x Zoom Ultra wide angle Wide angle

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535 cd/m²	527 cd/m²	492 cd/m²
539 cd/m²	553 cd/m²	508 cd/m²
538 cd/m²	542 cd/m²	505 cd/m²

Distribuição do brilho

tested with X-Rite i1Pro 2

Máximo: 553 cd/m² (Nits) Médio: 526.6 cd/m² Minimum: 1.28 cd/m²
iluminação: 89 %
iluminação com acumulador: 553 cd/m²
Contraste: 4608:1 (Preto: 0.12 cd/m²)
ΔE Color 3.8 | 0.5-29.43 Ø4.92
ΔE Greyscale 2.2 | 0.5-98 Ø5.2
97.7% sRGB (Calman 2D)
Gamma: 2.3

	Xiaomi Redmi Note 9 IPS LCD, 2340x1080, 6.5"	Xiaomi Redmi 9 IPS LCD, 2340x1080, 6.5"	Xiaomi Redmi Note 9S IPS, 2400x1080, 6.7"	Samsung Galaxy A21s PLS, 1600x720, 6.5"	Realme 6i IPS, 1600x720, 6.5"	Sony Xperia L4 IPS, 1680x720, 6.2"
Screen		-68%	-63%	-71%	-62%	-63%
Brightness middle	553	476 -14%	622 12%	540 -2%	518 -6%	429 -22%
Brightness	527	436 -17%	612 16%	509 -3%	484 -8%	404 -23%
Brightness Distribution	89	86 -3%	94 6%	91 2%	89 0%	92 3%
Black Level *	0.12	0.67 -458%	0.56 -367%	0.36 -200%	0.26 -117%	0.26 -117%
Contrast	4608	710 -85%	1111 -76%	1500 -67%	1992 -57%	1650 -64%
Colorchecker dE 2000 *	3.8	3.51 8%	3.98 -5%	6.58 -73%	5.8 -53%	6.14 -62%
Colorchecker dE 2000 max. *	8.7	9.38 -8%	7.33 16%	11.55 -33%	11 -26%	10.51 -21%
Greyscale dE 2000 *	2.2	1.5 32%	4.5 -105%	6.4 -191%	7.3 -232%	6.6 -200%
Gamma	2.3 ^96%	2.166 ^102%	2.206 ^100%	2.206 ^100%	2.23 ^99%	2.23 ^99%
CCT	6727 ^97%	6485 ^100%	7361 ^88%	8482 ^77%	8037 ^81%	8346 ^78%
Color Space (Percent of sRGB)			114.9

* ... smaller is better

Screen Flickering / PWM (Pulse-Width Modulation)

ℹ

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.

Screen flickering / PWM not detected

In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8743 (minimum: 5 - maximum: 343500) Hz was measured.

Display Response Times

ℹ

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.

↔ Response Time Black to White
25.6 ms ... rise ↗ and fall ↘ combined	↗ 12.4 ms rise
25.6 ms ... rise ↗ and fall ↘ combined	↘ 13.2 ms fall
The screen shows relatively slow response rates in our tests and may be too slow for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 58 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (21 ms).
↔ Response Time 50% Grey to 80% Grey
38.8 ms ... rise ↗ and fall ↘ combined	↗ 19.6 ms rise
38.8 ms ... rise ↗ and fall ↘ combined	↘ 19.2 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 55 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.9 ms).

Geekbench 5.5 | PCMark for Android | VRMark | BaseMark OS II

Geekbench 5.5
Single-Core (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	356 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	363 Points +2%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	559 Points +57%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	182 Points -49%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	387 Points +9%
Sony Xperia L4 Mediatek Helio P22 MT6762, PowerVR GE8320, 3072	150 Points -58%
Average Mediatek Helio G85 (341 - 437, n=14)	359 Points +1%
Average of class Smartphone (126 - 2437, n=172, last 2 years)	995 Points +179%
Multi-Core (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	1259 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	1281 Points +2%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	1690 Points +34%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	1081 Points -14%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	1348 Points +7%
Sony Xperia L4 Mediatek Helio P22 MT6762, PowerVR GE8320, 3072	883 Points -30%
Average Mediatek Helio G85 (1184 - 1363, n=14)	1311 Points +4%
Average of class Smartphone (473 - 6687, n=172, last 2 years)	3312 Points +163%
Vulkan Score 5.5 (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	1179 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	1109 Points -6%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	565 Points -52%
Average Mediatek Helio G85 (1163 - 1256, n=8)	1213 Points +3%
Average of class Smartphone (79 - 16883, n=42, last 2 years)	6763 Points +474%
OpenCL Score (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	1198 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	1124 Points -6%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	593 Points -51%
Average Mediatek Helio G85 (1148 - 1233, n=8)	1182 Points -1%
Average of class Smartphone (459 - 13578, n=35, last 2 years)	7074 Points +490%

PCMark for Android
Work performance score (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	11421 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	11534 Points +1%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	9027 Points -21%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	7113 Points -38%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	12043 Points +5%
Sony Xperia L4 Mediatek Helio P22 MT6762, PowerVR GE8320, 3072	6909 Points -40%
Average Mediatek Helio G85 (11421 - 11889, n=2)	11655 Points +2%
Work 2.0 performance score (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	8698 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	8795 Points +1%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	7673 Points -12%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	5457 Points -37%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	8733 Points 0%
Sony Xperia L4 Mediatek Helio P22 MT6762, PowerVR GE8320, 3072	5251 Points -40%
Average Mediatek Helio G85 (8655 - 8698, n=3)	8674 Points 0%

VRMark - Amber Room (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	1375 Score
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	1330 Score -3%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	2416 Score +76%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	994 Score -28%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	1352 Score -2%
Average Mediatek Helio G85 ()	1375 Score 0%
Average of class Smartphone (2523 - 10071, n=6, last 2 years)	5819 Score +323%

BaseMark OS II
Overall (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	2285 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	2273 Points -1%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	3542 Points +55%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	1644 Points -28%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	2216 Points -3%
Average Mediatek Helio G85 (2138 - 2422, n=5)	2290 Points 0%
Average of class Smartphone (1196 - 11976, n=151, last 2 years)	6297 Points +176%
System (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	5010 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	4865 Points -3%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	6828 Points +36%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	3382 Points -32%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	4516 Points -10%
Average Mediatek Helio G85 (4353 - 5010, n=5)	4622 Points -8%
Average of class Smartphone (2368 - 16475, n=151, last 2 years)	10163 Points +103%
Memory (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	2536 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	2654 Points +5%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	4295 Points +69%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	1884 Points -26%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	2542 Points 0%
Average Mediatek Helio G85 (2536 - 3437, n=5)	2917 Points +15%
Average of class Smartphone (962 - 12716, n=151, last 2 years)	6767 Points +167%
Graphics (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	1845 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	1759 Points -5%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	3807 Points +106%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	1159 Points -37%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	1735 Points -6%
Average Mediatek Helio G85 (1811 - 1960, n=5)	1861 Points +1%
Average of class Smartphone (1017 - 58651, n=151, last 2 years)	16908 Points +816%
Web (sort by value)
Xiaomi Redmi Note 9 Mediatek Helio G85, Mali-G52 MP2, 3072	1198 Points
Xiaomi Redmi 9 Mediatek Helio G80, Mali-G52 MP2, 3072	1243 Points +4%
Xiaomi Redmi Note 9S Qualcomm Snapdragon 720G, Adreno 618, 6144	1410 Points +18%
Samsung Galaxy A21s Samsung Exynos 850, Mali-G52 MP1, 3072	990 Points -17%
Realme 6i Mediatek Helio G80, Mali-G52 MP2, 4096	1211 Points +1%
Average Mediatek Helio G85 (1028 - 1198, n=5)	1132 Points -6%
Average of class Smartphone (841 - 2145, n=151, last 2 years)	1564 Points +31%

Jetstream 2 - Total Score
Average of class Smartphone (13.8 - 387, n=161, last 2 years)	120.4 Points +302%
Xiaomi Redmi Note 9S (Chrome 81)	48.53 Points +62%
Average Mediatek Helio G85 (29.2 - 52.8, n=6)	34.2 Points +14%
Xiaomi Redmi 9 (Chrome 85)	30.52 Points +2%
Xiaomi Redmi Note 9 (Chrome 85)	29.95 Points
Realme 6i (Chrome 81)	28.96 Points -3%
Samsung Galaxy A21s (Chrome 84)	19.15 Points -36%

JetStream 1.1 - Total Score
Xiaomi Redmi Note 9S (Chrome 81)	89.5 Points +66%
Average Mediatek Helio G85 (53.9 - 58.9, n=4)	56.6 Points +5%
Realme 6i (Chrome 81)	54.3 Points +1%
Xiaomi Redmi 9 (Chrome 85)	54 Points 0%
Xiaomi Redmi Note 9 (Chrome 85)	53.9 Points
Samsung Galaxy A21s (Chrome 84)	28.01 Points -48%

Speedometer 2.0 - Result
Average of class Smartphone (15.2 - 569, n=146, last 2 years)	136.2 runs/min +404%
Xiaomi Redmi Note 9S (Chome 81)	44.1 runs/min +63%
Average Mediatek Helio G85 (27 - 40.6, n=5)	30.2 runs/min +12%
Xiaomi Redmi 9 (Chrome 85)	28.1 runs/min +4%
Realme 6i (Chrome 81)	27.7 runs/min +3%
Xiaomi Redmi Note 9 (Chrome 85)	27 runs/min
Samsung Galaxy A21s (Chome 84)	15 runs/min -44%

WebXPRT 3 - Overall
Average of class Smartphone (38 - 347, n=79, last 2 years)	148.7 Points +230%
Xiaomi Redmi Note 9S (Chrome 81)	69 Points +53%
Average Mediatek Helio G85 (43 - 47, n=5)	45.2 Points 0%
Xiaomi Redmi Note 9 (Chrome 85)	45 Points
Xiaomi Redmi 9	45 Points 0%
Realme 6i (Chrome 81)	43 Points -4%
Samsung Galaxy A21s (Chrome 84)	35 Points -22%

Octane V2 - Total Score
Average of class Smartphone (2228 - 100368, n=203, last 2 years)	37161 Points +261%
Xiaomi Redmi Note 9S (Chrome 81)	17303 Points +68%
Average Mediatek Helio G85 (10299 - 15430, n=12)	12698 Points +23%
Realme 6i (Chrome 81)	10485 Points +2%
Xiaomi Redmi 9 (Chrome 85)	10432 Points +1%
Xiaomi Redmi Note 9 (Chrome 85)	10299 Points
Samsung Galaxy A21s (Chrome 84)	4976 Points -52%

Mozilla Kraken 1.1 - Total
Samsung Galaxy A21s (Chrome 84)	9174 ms * -135%
Xiaomi Redmi 9 (Chrome 85)	4076 ms * -4%
Realme 6i (Chrome 81)	3938 ms * -1%
Xiaomi Redmi Note 9 (Chrome 85)	3901 ms *
Average Mediatek Helio G85 (2967 - 3939, n=6)	3536 ms * +9%
Xiaomi Redmi Note 9S (Chrome 81)	2794 ms * +28%
Average of class Smartphone (277 - 28190, n=160, last 2 years)	1568 ms * +60%

* ... smaller is better

	Xiaomi Redmi Note 9	Xiaomi Redmi 9	Xiaomi Redmi Note 9S	Samsung Galaxy A21s	Realme 6i	Sony Xperia L4	Average 64 GB eMMC Flash	Average of class Smartphone
AndroBench 3-5		-23%	20%	-13%	4%	-22%	-24%	352%
Sequential Read 256KB	306.6	289.9 -5%	496.6 62%	307 0%	309.5 1%	293.4 -4%	274 ?(95.6 - 704, n=203) -11%	1839 ?(226 - 4512, n=192, last 2 years) 500%
Sequential Write 256KB	248.1	119.8 -52%	214.8 -13%	104.3 -58%	256.4 3%	165 -33%	176.2 ?(40 - 274, n=203) -29%	1425 ?(57.5 - 3908, n=192, last 2 years) 474%
Random Read 4KB	65.1	49.09 -25%	137 110%	77.2 19%	73.5 13%	61.2 -6%	59.4 ?(9.58 - 148.5, n=203) -9%	277 ?(22.2 - 483, n=192, last 2 years) 325%
Random Write 4KB	146.9	60.7 -59%	123.6 -16%	89.5 -39%	150.9 3%	22.5 -85%	32 ?(2.34 - 146.9, n=203) -78%	309 ?(9.4 - 753, n=192, last 2 years) 110%
Sequential Read 256KB SDCard	84.4 ?(Toshiba Exceria Pro M501)	84.4 ?(Toshiba Exceria Pro M501) 0%	74.5 ?(Toshiba Exceria Pro M501) -12%	80 ?(Toshiba Exceria Pro M501) -5%	84.6 ?(Toshiba Exceria Pro M501) 0%	83.5 ?(Toshiba Exceria Pro M501) -1%	77.4 ?(21.1 - 107.6, n=144) -8%
Sequential Write 256KB SDCard	63.5 ?(Toshiba Exceria Pro M501)	65 ?(Toshiba Exceria Pro M501) 2%	54.9 ?(Toshiba Exceria Pro M501) -14%	66.4 ?(Toshiba Exceria Pro M501) 5%	64.5 ?(Toshiba Exceria Pro M501) 2%	62.5 ?(Toshiba Exceria Pro M501) -2%	58.3 ?(11.2 - 83.3, n=144) -8%

PUBG mobile

Xiaomi Redmi Note 9; Smooth: Ø39.6 (35-42)

Xiaomi Redmi Note 9; Balanced: Ø39.8 (38-41)

Xiaomi Redmi Note 9; HD: Ø29.9 (28-31)

Real Racing 3

Xiaomi Redmi Note 9: Ø53 (23-60)

Dead Trigger 2

Xiaomi Redmi Note 9: Ø59.3 (47-60)

Carga Máxima

Inatividade


35.8 °C	35.1 °C	34.2 °C
34.8 °C	34 °C	34.5 °C
33.5 °C	32.4 °C	32.2 °C

Máximo: 35.8 °C
Médio: 34.1 °C


30.5 °C	32.5 °C	34.4 °C
30.3 °C	31.2 °C	33.5 °C
30.7 °C	32.4 °C	32.5 °C

Máximo: 34.4 °C
Médio: 32 °C

alimentação elétrica 23.1 °C | Temperatura do quarto 21.8 °C | Fluke t3000FC (calibrated) & Voltcraft IR-260

(±) The average temperature for the upper side under maximal load is 34.1 °C / 93 F, compared to the average of 32.8 °C / 91 F for the devices in the class Smartphone.
(+) The maximum temperature on the upper side is 35.8 °C / 96 F, compared to the average of 35.1 °C / 95 F, ranging from 21.9 to 63.2 °C for the class Smartphone.
(+) The bottom heats up to a maximum of 34.4 °C / 94 F, compared to the average of 33.9 °C / 93 F
(+) In idle usage, the average temperature for the upper side is 29.5 °C / 85 F, compared to the device average of 32.8 °C / 91 F.

Frequency diagram (checkboxes can be checked and unchecked to compare devices)

Xiaomi Redmi Note 9 audio analysis

(+) | speakers can play relatively loud (92.4 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 23.8% lower than median
(+) | bass is linear (4.1% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | reduced mids - on average 5.2% lower than median
(+) | mids are linear (4.6% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5% higher than median
(+) | highs are linear (3.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (17.1% difference to median)
Compared to same class
» 8% of all tested devices in this class were better, 6% similar, 86% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 28% of all tested devices were better, 8% similar, 65% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Samsung Galaxy A21s audio analysis

(±) | speaker loudness is average but good (79.5 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 62.2% lower than median
(+) | bass is linear (0% delta to prev. frequency)
Mids 400 - 2000 Hz
(-) | nearly no mids - on average 62.2% lower than median
(+) | mids are linear (0% delta to prev. frequency)
Highs 2 - 16 kHz
(-) | nearly no highs - on average 62.2% lower than median
(+) | highs are linear (0% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (128.9% difference to median)
Compared to same class
» 98% of all tested devices in this class were better, 2% similar, 0% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 99% of all tested devices were better, 1% similar, 0% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Consumo de energia

desligado	0.02 / 0.23 Watt
Ocioso	0.74 / 2.17 / 2.2 Watt
Carga	4.17 / 6.11 Watt


Key: min: , med: , max: Metrahit Energy

	Xiaomi Redmi Note 9 5020 mAh	Xiaomi Redmi 9 5020 mAh	Xiaomi Redmi Note 9S 5020 mAh	Samsung Galaxy A21s 5000 mAh	Realme 6i 5000 mAh	Average Mediatek Helio G85	Average of class Smartphone
Power Consumption		-28%	-32%	-30%	23%	-3%	-15%
Idle Minimum *	0.74	1.4 -89%	1.5 -103%	1.5 -103%	0.37 50%	0.957 ?(0.7 - 1.7, n=6) -29%	0.894 ?(0.4 - 2.37, n=152, last 2 years) -21%
Idle Average *	2.17	1.7 22%	2.1 3%	2.1 3%	1.62 25%	1.628 ?(0.9 - 2.9, n=6) 25%	1.456 ?(0.6 - 4.26, n=152, last 2 years) 33%
Idle Maximum *	2.2	2.1 5%	2.5 -14%	2.9 -32%	1.69 23%	2 ?(1.3 - 3, n=6) 9%	1.616 ?(0.83 - 4.45, n=152, last 2 years) 27%
Load Average *	4.17	5.7 -37%	5.2 -25%	4.6 -10%	3.61 13%	4.35 ?(3.5 - 5.3, n=6) -4%	6.45 ?(2.3 - 16.5, n=147, last 2 years) -55%
Load Maximum *	6.11	8.5 -39%	7.5 -23%	6.6 -8%	5.9 3%	6.95 ?(6.11 - 8.5, n=6) -14%	9.8 ?(3.53 - 20.8, n=147, last 2 years) -60%

* ... smaller is better

Tempo de Execução da Bateria

Ocioso (sem WLAN, min brilho)		38h 14min
WiFi Websurfing		14h 27min
Big Buck Bunny H.264 1080p		18h 36min
Carga (máximo brilho)		5h 14min

	Xiaomi Redmi Note 9 5020 mAh	Xiaomi Redmi 9 5020 mAh	Xiaomi Redmi Note 9S 5020 mAh	Samsung Galaxy A21s 5000 mAh	Realme 6i 5000 mAh	Sony Xperia L4 3580 mAh
Battery Runtime		-2%	10%	-4%	52%	-10%
Reader / Idle	2294	2337 2%	2263 -1%	2009 -12%
H.264	1116	1171 5%	1269 14%	1087 -3%
WiFi v1.3	867	804 -7%	1187 37%	943 9%	1318 52%	783 -10%
Load	314	289 -8%	279 -11%	287 -9%

Pro

+ Painel IPS de 1080p rico em contraste

+ WLAN veloz

+ Design e acabamento

+ Longa duração da bateria

+ Slot SIM triplo

+ SoC sólido com...

Contra

- ...armazenamento lento (eMMC)

- sombra escura ao redor do buraco de perfuração

- Sem opção de vídeo UHD

Veredicto sobre o Redmi Note 9 - Excelente entrada no mundo dos smartphones

In review: Redmi Note 9. Test unit provided by notebooksbilliger.de.

A Xiaomi anuncia seu smartphone de gama média acessível com as palavras: "Tudo o que você precisa." O fabricante chinês de Shenzhen não está completamente errado com seu slogan publicitário, já que o Redmi Note 9 oferece uma experiência de smartphone realmente boa por um preço de rua de cerca de 150 euros (~$ 178) - no entanto, recomendamos claramente investir os 20 euros (~$ 24) mais para obter a versão de 4 GB.

Ao procurar um smartphone acessível por menos de 200 Euros (~$ 237), você definitivamente deve considerar o Redmi Note 9.

Em comparação com o Redmi 9, o modelo Note usa o melhor alto-falante e a melhor câmera principal. O painel IPS mais brilhante que tem claramente mais contraste e ângulos de visão mais estáveis, traz uma vantagem visível, particularmente na operação diária. Além disso, o Note 9 inclui o carregador rápido por padrão.

No entanto, Redmi Note 9 é e continua sendo um smartphone de nível de entrada. Consequentemente, você deve fazer alguns compromissos na escolha do processador, na qualidade da câmera - especialmente na câmera ultra grande angular - bem como no armazenamento e nas velocidades WLAN.

Xiaomi Redmi Note 9 - 09/16/2020 v7 ^(old)
Marcus Herbrich

Acabamento

87%

Teclado

67 / 75 → 89%

Mouse

89%

Conectividade

50 / 70 → 72%

Peso

88%

Bateria

91%

Pantalha

87%

Desempenho do jogos

14 / 64 → 22%

Desempenho da aplicação

64 / 86 → 74%

Temperatura

92%

Ruído

100%

Audio

77 / 90 → 85%

Camera

66%

Médio

75%

80%

Smartphone - Médio equilibrado

Price comparison

Editor of the original article: Mark Riege - Translator - 534 articles published on Notebookcheck since 2018

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> Análises e revisões de portáteis e celulares > Análises > Análises > Breve Análise do Smartphone Xiaomi Redmi Note 9 - O melhor Redmi 9 com uma câmera quadrupla de 64-MP

Marcus Herbrich, 2020-09-20 (Update: 2020-09-20)

Comparison devices

Size Comparison

Screen Flickering / PWM (Pulse-Width Modulation)

Display Response Times

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Xiaomi Redmi Note 9 audio analysis

Samsung Galaxy A21s audio analysis

Pro

Contra

Veredicto sobre o Redmi Note 9 - Excelente entrada no mundo dos smartphones

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