| Product |
Vivo Y81i
|
Vivo Z3x
|
| Battery |
| Type |
3260 mAh, non-removable |
Li-Ion 3260 mAh, non-removable |
| Body |
| Build |
Glass front (Gorilla Glass), plastic back, plastic frame |
Glass front, plastic back, plastic frame |
| Dimensions |
155.1 x 75 x 7.8 mm (6.11 x 2.95 x 0.31 in) |
154.8 x 75 x 7.9 mm (6.09 x 2.95 x 0.31 in) |
| SIM |
Nano-SIM + Nano-SIM |
Nano-SIM + Nano-SIM |
| Weight |
143 g (5.04 oz) |
150 g (5.29 oz) |
| Comms |
| Bluetooth |
5.0, A2DP, LE |
5.0, A2DP, LE |
| NFC |
No |
No |
| Positioning |
GPS, GLONASS, BDS |
GPS, GLONASS, BDS |
| Radio |
FM radio |
FM radio |
| USB |
microUSB 2.0, OTG |
microUSB 2.0, OTG |
| WLAN |
Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct |
| Display |
| Protection |
Corning Gorilla Glass |
- |
| Resolution |
720 x 1520 pixels, 19:9 ratio (~270 ppi density) |
1080 x 2280 pixels, 19:9 ratio (~403 ppi density) |
| Size |
6.22 inches, 96.6 cm2 (~83.0% screen-to-body ratio) |
6.26 inches, 97.8 cm2 (~84.2% screen-to-body ratio) |
| Type |
IPS LCD |
IPS LCD |
| Features |
| Sensors |
Accelerometer, proximity, compass |
Fingerprint (rear-mounted), accelerometer, proximity, compass |
| Launch |
| Announced |
2018, October. Released 2018, November |
2019, April. Released 2019, May |
| Status |
Discontinued |
Discontinued |
| Main Camera |
| Dual |
- |
13 MP, f/2.2, PDAF
2 MP, f/2.4, (depth) |
| Features |
LED flash, HDR, panorama |
LED flash, panorama |
| Single |
13 MP, f/2.2, PDAF |
- |
| Video |
1080p@30fps |
1080p@30fps |
| Memory |
| Card slot |
microSDXC (dedicated slot) |
microSDXC (dedicated slot) |
| Internal |
16GB 2GB RAM |
64GB 4GB RAM, 64GB 6GB RAM |
| |
eMMC 5.1 |
eMMC 5.1 |
| Misc |
| Colors |
Black, Red |
Black, Red, Aurora |
| Models |
1812, 1812_19 |
V1730GA |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 900 / 2100 |
HSDPA 850 / 900 / 2100 |
| 4G bands |
1, 3, 5, 7, 8, 38, 40, 41 |
1, 3, 5, 8, 34, 38, 39, 40, 41 |
| Speed |
HSPA 21.1/5.76 Mbps, LTE (2CA) Cat7 300/150 Mbps |
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps |
| Technology |
GSM / HSPA / LTE |
GSM / CDMA / HSPA / LTE |
| |
- |
CDMA 800 & TD-SCDMA |
| Platform |
| Chipset |
Mediatek MT6761 Helio A22 (12 nm) |
Qualcomm SDM660 Snapdragon 660 (14 nm) |
| CPU |
Quad-core 2.0 GHz Cortex-A53 |
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| GPU |
PowerVR GE8320 |
Adreno 512 |
| OS |
Android 8.1 (Oreo), Funtouch 4 |
Android 9.0 (Pie), Funtouch 9 |
| Selfie camera |
| Single |
5 MP, f/2.2 |
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm |
| Video |
|
|
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
