Breve Análise do Smartphone Samsung Galaxy A8 2018
| Networking | |
| iperf3 transmit AX12 | |
| OnePlus 5T | |
| Sony Xperia XZ1 | |
| Asus ZenFone 4 ZE554KL | |
| Samsung Galaxy A8 2018 | |
| BQ Aquaris X Pro | |
| Honor 9 | |
| iperf3 receive AX12 | |
| Sony Xperia XZ1 | |
| OnePlus 5T | |
| Asus ZenFone 4 ZE554KL | |
| Honor 9 | |
| Samsung Galaxy A8 2018 | |
| BQ Aquaris X Pro | |
| |||||||||||||||||||||||||
iluminação: 96 %
iluminação com acumulador: 541 cd/m²
Contraste: ∞:1 (Preto: 0 cd/m²)
ΔE Color 5.8 | 0.5-29.43 Ø4.92
ΔE Greyscale 2.7 | 0.5-98 Ø5.2
Gamma: 2.07
| Samsung Galaxy A8 2018 Super AMOLED, 2220x1080, 5.6" | Asus ZenFone 4 ZE554KL IPS, 1920x1080, 5.5" | BQ Aquaris X Pro IPS, 1920x1080, 5.2" | Honor 9 IPS/LTPS, 1920x1080, 5.2" | OnePlus 5T AMOLED, 2160x1080, 6" | Sony Xperia XZ1 IPS, 1920x1080, 5.2" | |
|---|---|---|---|---|---|---|
| Screen | -10% | -69% | 1% | 5% | 2% | |
| Brightness middle | 541 | 656 21% | 458 -15% | 550 2% | 425 -21% | 620 15% |
| Brightness | 538 | 634 18% | 473 -12% | 535 -1% | 423 -21% | 610 13% |
| Brightness Distribution | 96 | 93 -3% | 88 -8% | 92 -4% | 92 -4% | 93 -3% |
| Black Level * | 0.4 | 0.51 | 0.42 | 0.79 | ||
| Colorchecker dE 2000 * | 5.8 | 5.3 9% | 7.1 -22% | 3.3 43% | 2.1 64% | 4.2 28% |
| Greyscale dE 2000 * | 2.7 | 5.2 -93% | 10.5 -289% | 3.6 -33% | 2.5 7% | 3.9 -44% |
| Gamma | 2.07 106% | 2.22 99% | 2.28 96% | 2.38 92% | 2.32 95% | 2.02 109% |
| CCT | 6570 99% | 7905 82% | 8951 73% | 7226 90% | 6455 101% | 7086 92% |
| Contrast | 1640 | 898 | 1310 | 785 | ||
| Colorchecker dE 2000 max. * | 7.8 | 14.5 | 4.5 | 3.4 | 5.8 |
* ... smaller is better
Screen Flickering / PWM (Pulse-Width Modulation)
| Screen flickering / PWM detected | 242.7 Hz |  | |
The display backlight flickers at 242.7 Hz (worst case, e.g., utilizing PWM) . The frequency of 242.7 Hz is relatively low, so sensitive users will likely notice flickering and experience eyestrain at the stated brightness setting and below. 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
| ↔ Response Time Black to White | ||
|---|---|---|
| 4 ms ... rise ↗ and fall ↘ combined | ↗ 2 ms rise |  |
| ↘ 2 ms fall | ||
| The screen shows very fast response rates in our tests and should be very well suited for fast-paced gaming. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 12 % of all devices are better. This means that the measured response time is better than the average of all tested devices (21 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 5.2 ms ... rise ↗ and fall ↘ combined | ↗ 2.4 ms rise |  |
| ↘ 2.8 ms fall | ||
| The screen shows very fast response rates in our tests and should be very well suited for fast-paced gaming. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 14 % of all devices are better. This means that the measured response time is better than the average of all tested devices (32.9 ms). | ||
| Lightmark - 1920x1080 1080p (sort by value) | |
| Samsung Galaxy A8 2018 | |
| Asus ZenFone 4 ZE554KL | |
| Oukitel K10 | |
| Ulefone Power 3 | |
| Average Samsung Exynos 7885 () | |
| Basemark ES 3.1 / Metal - offscreen Overall Score (sort by value) | |
| Samsung Galaxy A8 2018 | |
| Asus ZenFone 4 ZE554KL | |
| Oukitel K10 | |
| Ulefone Power 3 | |
| Average Samsung Exynos 7885 () | |
| Average of class Smartphone (205 - 7616, n=56, last 2 years) | |
| JetStream 1.1 - Total Score | |
| OnePlus 5T (Chrome 63) | |
| Sony Xperia XZ1 (Chrome 61) | |
| Honor 9 (Chrome 59) | |
| Samsung Galaxy A8 2018 (Chrome 64.0.3282.137) | |
| Average Samsung Exynos 7885 (48 - 49.1, n=2) | |
| Asus ZenFone 4 ZE554KL (Chrome 62) | |
| BQ Aquaris X Pro (Chrome 59.0.3071.125) | |
| Ulefone Power 3 (Standardbrowser 7.1.1) | |
| Oukitel K10 (Standard Browser 7.1.1) | |
| Octane V2 - Total Score | |
| Average of class Smartphone (2228 - 100368, n=203, last 2 years) | |
| OnePlus 5T (Chrome 63) | |
| Honor 9 (Chrome 59) | |
| Sony Xperia XZ1 (Chrome 61) | |
| Samsung Galaxy A8 2018 (Chrome 64.0.3282.137) | |
| Average Samsung Exynos 7885 (9165 - 9350, n=2) | |
| BQ Aquaris X Pro (Chrome 59.0.3071.125) | |
| Asus ZenFone 4 ZE554KL (Chrome 62) | |
| Ulefone Power 3 (Standardbrowser 7.1.1) | |
| Oukitel K10 (Standard Browser 7.1.1) | |
| Mozilla Kraken 1.1 - Total | |
| Ulefone Power 3 (Standardbrowser 7.1.1) | |
| Oukitel K10 (Standard Browser 7.1.1) | |
| Asus ZenFone 4 ZE554KL (Chrome 62) | |
| BQ Aquaris X Pro (Chrome 59.0.3071.125) | |
| Samsung Galaxy A8 2018 (Chrome 64.0.3282.137) | |
| Average Samsung Exynos 7885 (4123 - 4275, n=2) | |
| Sony Xperia XZ1 (Chrome 61) | |
| Honor 9 (Chrome 59) | |
| OnePlus 5T (Chrome 63) | |
| Average of class Smartphone (277 - 28190, n=160, last 2 years) | |
| WebXPRT 2015 - Overall | |
| OnePlus 5T (Chrome 63) | |
| Sony Xperia XZ1 (Chrome 61) | |
| Average Samsung Exynos 7885 (156 - 168, n=2) | |
| Samsung Galaxy A8 2018 (Chrome 64.0.3282.137) | |
| Honor 9 (Chrome 59) | |
| Asus ZenFone 4 ZE554KL (Chrome 62) | |
| BQ Aquaris X Pro (Chrome 59.0.3071.125) | |
| Oukitel K10 (Standard Browser 7.1.1) | |
| Ulefone Power 3 (Standardbrowser 7.1.1) | |
* ... smaller is better
| Samsung Galaxy A8 2018 | Asus ZenFone 4 ZE554KL | BQ Aquaris X Pro | Honor 9 | OnePlus 5T | Sony Xperia XZ1 | Average 32 GB eMMC Flash | Average of class Smartphone | |
|---|---|---|---|---|---|---|---|---|
| AndroBench 3-5 | 8% | -11% | 21% | 83% | 46% | -7% | 1007% | |
| Sequential Read 256KB | 299.9 | 287.4 -4% | 270.5 -10% | 293 -2% | 699 133% | 679 126% | 242 ? -19% | 1847 ? 516% |
| Sequential Write 256KB | 104.2 | 205.3 97% | 139.6 34% | 204 96% | 203.4 95% | 204.4 96% | 100.5 ? -4% | 1436 ? 1278% |
| Random Read 4KB | 82.6 | 68.6 -17% | 37.97 -54% | 55.7 -33% | 138.1 67% | 156.6 90% | 43.2 ? -48% | 277 ? 235% |
| Random Write 4KB | 14.69 | 7.59 -48% | 12.07 -18% | 32.7 123% | 20 36% | 14.93 2% | 22.4 ? 52% | 308 ? 1997% |
| Sequential Read 256KB SDCard | 77.9 ? | 86.9 ? 12% | 78.7 ? 1% | 68 ? -13% | 65.5 ? -16% | 71.8 ? -8% | ||
| Sequential Write 256KB SDCard | 62.3 ? | 66.5 ? 7% | 49.77 ? -20% | 34.64 ? -44% | 47.71 ? -23% | 52.9 ? -15% |
| Dead Trigger 2 | |||
| Configurações | Valor | ||
| high | 54 fps | ||
| Asphalt 8: Airborne | |||
| Configurações | Valor | ||
| high | 30 fps | ||
| very low | 30 fps | ||
(+) The maximum temperature on the upper side is 37.9 °C / 100 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 39.2 °C / 103 F, compared to the average of 33.9 °C / 93 F
(+) In idle usage, the average temperature for the upper side is 25.8 °C / 78 F, compared to the device average of 32.8 °C / 91 F.
Samsung Galaxy A8 2018 audio analysis
(+) | speakers can play relatively loud (85 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 28.7% lower than median
(±) | linearity of bass is average (9.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.8% away from median
(+) | mids are linear (5.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.6% away from median
(+) | highs are linear (5.9% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (20.2% difference to median)
Compared to same class
» 29% of all tested devices in this class were better, 9% similar, 62% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 49% of all tested devices were better, 8% similar, 43% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Asus ZenFone 4 ZE554KL audio analysis
(+) | speakers can play relatively loud (82.2 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 28.3% lower than median
(±) | linearity of bass is average (8.1% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.7% away from median
(+) | mids are linear (6.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.9% away from median
(+) | highs are linear (5.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (21.7% difference to median)
Compared to same class
» 39% of all tested devices in this class were better, 8% similar, 53% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 58% of all tested devices were better, 7% similar, 35% worse
» The best had a delta of 4%, average was 25%, worst was 134%
OnePlus 5T audio analysis
(+) | speakers can play relatively loud (86.3 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 21.2% lower than median
(±) | linearity of bass is average (9.9% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3% away from median
(+) | mids are linear (6% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.9% higher than median
(+) | highs are linear (3.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (18.4% difference to median)
Compared to same class
» 15% of all tested devices in this class were better, 9% similar, 76% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 37% of all tested devices were better, 8% similar, 55% worse
» The best had a delta of 4%, average was 25%, worst was 134%
| desligado |   0 / 0.15 Watt |
| Ocioso |  0.67 / 1.02 / 1.1 Watt |
| Carga |
3.86 / 5.97 Watt |
    
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Samsung Galaxy A8 2018 3000 mAh | Asus ZenFone 4 ZE554KL 3300 mAh | BQ Aquaris X Pro 3100 mAh | Honor 9 3200 mAh | OnePlus 5T 3300 mAh | Sony Xperia XZ1 2700 mAh | |
|---|---|---|---|---|---|---|
| Power Consumption | -59% | -30% | -72% | -18% | -68% | |
| Idle Minimum * | 0.67 | 0.84 -25% | 0.67 -0% | 1.13 -69% | 0.58 13% | 0.51 24% |
| Idle Average * | 1.02 | 2.31 -126% | 1.7 -67% | 2.25 -121% | 1.44 -41% | 2.16 -112% |
| Idle Maximum * | 1.1 | 2.33 -112% | 1.78 -62% | 2.3 -109% | 1.53 -39% | 2.23 -103% |
| Load Average * | 3.86 | 4.76 -23% | 4.42 -15% | 4.89 -27% | 3.17 18% | 7.45 -93% |
| Load Maximum * | 5.97 | 6.39 -7% | 6.3 -6% | 7.99 -34% | 8.54 -43% | 9.28 -55% |
* ... smaller is better
| Samsung Galaxy A8 2018 3000 mAh | Asus ZenFone 4 ZE554KL 3300 mAh | BQ Aquaris X Pro 3100 mAh | Honor 9 3200 mAh | OnePlus 5T 3300 mAh | Sony Xperia XZ1 2700 mAh | |
|---|---|---|---|---|---|---|
| Battery Runtime | -5% | 0% | -15% | 3% | -18% | |
| Reader / Idle | 1546 | 1665 8% | 1840 19% | 1399 -10% | 1754 13% | 1612 4% |
| H.264 | 908 | 698 -23% | 644 -29% | 564 -38% | 799 -12% | 580 -36% |
| WiFi v1.3 | 646 | 562 -13% | 730 13% | 516 -20% | 718 11% | 601 -7% |
| Load | 260 | 286 10% | 254 -2% | 278 7% | 257 -1% | 172 -34% |
Pro
Contra
Com o Galaxy A8 (2018), a Samsung criou um smartphone de gama média bem equipado que oferece muito. O design parece e se sente premium é conta com certificação IP68. A tela Super AMOLED Infinity é visualmente impressionante, sendo bem ajustada e brilhante, enquanto também conta com uma alta resolução. A variante Dual-SIM é realmente Dual-SIM, contando com um slot dedicado para a expansão para cartões microSD, em vez de ter que escolher entre um segundo SIM ou um cartão microSD. Os fanáticos das selfies recebem uma câmera frontal dupla com bons óticos que deixa espaço para gimmicks enquanto ainda tira boas fotos, este último também se aplica para a câmera traseira de 16 MP.
Bom desempenho, porém, a um preço questionável. O Galaxy A8 (2018) cria concorrência desnecessária para si mesma, com o Galaxy S8 de gama alta mais veloz e melhor equipado, custando apenas cerca de €100 (~$123) a mais.
Apesar dos pontos positivos, os ambiciosos €499 (~$615) do preço recomendado, provavelmente fará que compradores potenciais desistam. Embora possa ser encontrado por menos, o Galaxy A8 (2018) permanece com o preço próximo ao do Galaxy S8, que traz melhores recursos e desempenho por apenas €100 (~$123) a mais, no momento desta análise. Também existem alternativas ao Galaxy A8 (2018) que são iguais de rápidas, como o ASUS ZenFone 4 ZE554KL ou o BQ Aquaris X Pro, que estão disponíveis por cerca de €450 e €350 (~$555 e $430) respectivamente.
Samsung Galaxy A8 2018
- 02/25/2018 v6 (old)
Manuel Masiero
Price comparison
