| Product |
Vivo Y81i
|
Xiaomi Mi 9T Pro
|
| Battery |
| Charging |
- |
27W wired, QC4 |
| Type |
3260 mAh, non-removable |
Li-Po 4000 mAh, non-removable |
| Body |
| Build |
Glass front (Gorilla Glass), plastic back, plastic frame |
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame |
| Dimensions |
155.1 x 75 x 7.8 mm (6.11 x 2.95 x 0.31 in) |
156.7 x 74.3 x 8.8 mm (6.17 x 2.93 x 0.35 in) |
| SIM |
Nano-SIM + Nano-SIM |
Nano-SIM + Nano-SIM |
| Weight |
143 g (5.04 oz) |
191 g (6.74 oz) |
| Comms |
| Bluetooth |
5.0, A2DP, LE |
5.0, A2DP, LE, aptX HD |
| NFC |
No |
Yes |
| Positioning |
GPS, GLONASS, BDS |
GPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a) |
| Radio |
FM radio |
Yes |
| USB |
microUSB 2.0, OTG |
USB Type-C 2.0, OTG |
| WLAN |
Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Display |
| Protection |
Corning Gorilla Glass |
Corning Gorilla Glass 5 |
| Resolution |
720 x 1520 pixels, 19:9 ratio (~270 ppi density) |
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) |
| Size |
6.22 inches, 96.6 cm2 (~83.0% screen-to-body ratio) |
6.39 inches, 100.2 cm2 (~86.1% screen-to-body ratio) |
| Type |
IPS LCD |
Super AMOLED, HDR |
| Features |
| Sensors |
Accelerometer, proximity, compass |
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Launch |
| Announced |
2018, October. Released 2018, November |
2019, August 21. Released 2019, August 21 |
| Status |
Discontinued |
Discontinued |
| Main Camera |
| Features |
LED flash, HDR, panorama |
Laser AF, Dual-LED flash, HDR, panorama |
| Single |
13 MP, f/2.2, PDAF |
- |
| Triple |
- |
|
| Video |
1080p@30fps |
4K@30/60fps, 1080p@30/120/240fps, 1080p@960fps |
| Memory |
| Card slot |
microSDXC (dedicated slot) |
No |
| Internal |
16GB 2GB RAM |
64GB 6GB RAM, 128GB 6GB RAM, 256GB 8GB RAM |
|
eMMC 5.1 |
UFS 2.1 |
| Misc |
| Colors |
Black, Red |
Carbon black, Red flame, Glacier blue |
| Models |
1812, 1812_19 |
M1903F11G |
| SAR |
- |
|
| SAR EU |
- |
|
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 900 / 2100 |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands |
1, 3, 5, 7, 8, 38, 40, 41 |
1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40 |
| Speed |
HSPA 21.1/5.76 Mbps, LTE (2CA) Cat7 300/150 Mbps |
HSPA, LTE |
| Technology |
GSM / HSPA / LTE |
GSM / HSPA / LTE |
| Our Tests |
| Audio quality |
- |
Noise -93.9dB / Crosstalk -94.2dB |
| Battery (old) |
- |
Endurance rating 103h |
| Display |
- |
Contrast ratio: Infinite (nominal) |
| Loudspeaker |
- |
-26.9 LUFS (Good) |
| Performance |
- |
AnTuTu: 368846 (v7), 437823 (v8)
GeekBench: 10684 (v4.4), 2732 (v5.1)
GFXBench: 36fps (ES 3.1 onscreen) |
| Platform |
| Chipset |
Mediatek MT6761 Helio A22 (12 nm) |
Qualcomm SM8150 Snapdragon 855 (7 nm) |
| CPU |
Quad-core 2.0 GHz Cortex-A53 |
Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485) |
| GPU |
PowerVR GE8320 |
Adreno 640 |
| OS |
Android 8.1 (Oreo), Funtouch 4 |
Android 9.0 (Pie), upgradable to Android 11, MIUI 12.5 |
| Selfie camera |
| Features |
- |
HDR |
| Single |
5 MP, f/2.2 |
|
| Video |
|
1080p@30fps |
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
|
- |
24-bit/192kHz Hi-Res audio |
