| Product |
Vivo Z1i
|
Xiaomi Redmi S2 (Redmi Y2)
|
| Battery |
| Charging |
- |
10W wired |
| Type |
Li-Ion 3260 mAh, non-removable |
Li-Po 3080 mAh, non-removable |
| Body |
| Build |
Glass front, plastic back, plastic frame |
Glass front, plastic back, plastic frame |
| Dimensions |
154.8 x 75 x 7.9 mm (6.09 x 2.95 x 0.31 in) |
160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in) |
| SIM |
Nano-SIM + Nano-SIM |
Nano-SIM + Nano-SIM |
| Weight |
149.3 g (5.26 oz) |
170 g (6.00 oz) |
| Comms |
| Bluetooth |
5.0, A2DP, LE |
4.2, A2DP, LE |
| Infrared port |
- |
Yes |
| NFC |
No |
No |
| Positioning |
GPS, GLONASS, BDS |
|
| Radio |
FM radio |
FM radio |
| USB |
microUSB 2.0, OTG |
microUSB 2.0 |
| WLAN |
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
| Display |
| Resolution |
1080 x 2280 pixels, 19:9 ratio (~403 ppi density) |
720 x 1440 pixels, 18:9 ratio (~269 ppi density) |
| Size |
6.26 inches, 97.8 cm2 (~84.2% screen-to-body ratio) |
5.99 inches, 92.6 cm2 (~74.5% screen-to-body ratio) |
| Type |
IPS LCD |
IPS LCD |
| Features |
| Sensors |
Fingerprint (rear-mounted), accelerometer, proximity, compass |
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| Launch |
| Announced |
2018, July. Released 2018, July |
2018, May. Released 2018, May |
| Status |
Discontinued |
Discontinued |
| Main Camera |
| Dual |
13 MP, f/2.2, PDAF
2 MP, (depth) |
12 MP, f/2.2, 1.25μm, PDAF
5 MP, f/2.4, (depth) |
| Features |
LED flash, HDR, panorama |
LED flash, panorama, HDR |
| Video |
4K@30fps, 1080p@30fps |
1080p@30fps (gyro-EIS) |
| Memory |
| Card slot |
microSDXC (uses shared SIM slot) |
microSDXC (dedicated slot) |
| Internal |
128GB 4GB RAM, 128GB 8GB RAM |
32GB 3GB RAM, 64GB 4GB RAM |
| |
eMMC 5.1 |
eMMC 5.1 |
| Misc |
| Colors |
Black, Red |
Gray, Gold, Rose Gold, Mesmerising Blue, Stunning Black |
| Models |
V1730DA, V1730DT |
M1803E6G, M1803E6H, M1803E6I |
| SAR |
- |
0.43 W/kg (head) 1.58 W/kg (body) |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 900 / 1700(AWS) / 2100 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G bands |
1, 3, 4, 5, 8, 39, 40, 41 |
1, 3, 4, 5, 7, 8, 20, 38, 40 - Global |
| Speed |
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps |
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps |
| Technology |
GSM / CDMA / HSPA / LTE |
GSM / CDMA / HSPA / LTE |
| |
CDMA 800 & TD-SCDMA |
1, 3, 5, 7, 8, 34, 38, 39, 40, 41 - China |
| Our Tests |
| Audio quality |
- |
Noise -90.3dB / Crosstalk -93.1dB |
| Battery (old) |
- |
Endurance rating 92h |
| Camera |
- |
Photo / Video |
| Display |
- |
Contrast ratio: 1072:1 (nominal), 3.077 (sunlight) |
| Loudspeaker |
- |
Voice 68dB / Noise 69dB / Ring 82dB |
| Performance |
- |
AnTuTu: 77488 (v7)
GeekBench: 4313 (v4.4)
GFXBench: 7.4fps (ES 3.1 onscreen) |
| Platform |
| Chipset |
Qualcomm SDM636 Snapdragon 636 (14 nm) |
Qualcomm MSM8953 Snapdragon 625 (14 nm) |
| CPU |
Octa-core (4x1.8 GHz Kryo 260 Gold & 4x1.6 GHz Kryo 260 Silver) |
Octa-core 2.0 GHz Cortex-A53 |
| GPU |
Adreno 509 |
Adreno 506 |
| OS |
Android 8.1 (Oreo), Funtouch 4 |
Android 8.1 (Oreo), upgradable to Android 9, MIUI 12 |
| Selfie camera |
| Features |
- |
HDR, LED flash |
| Single |
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm |
16 MP, f/2.5, (wide), 1/3.06" 1.0µm |
| Video |
1080p@30fps |
1080p@30fps |
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
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