| Product |
Vivo Y51 (2020, September)
|
Apple iPhone 4s
|
| Battery |
| Charging |
18W wired |
- |
| Stand-by |
- |
Up to 200 h (3G) |
| Talk time |
- |
Up to 8 h (3G) |
| Type |
4500 mAh |
Li-Po 1432 mAh, non-removable (5.3 Wh) |
| Body |
| Build |
- |
Glass front (Corning-made glass), glass back, stainless steel frame |
| Dimensions |
159.3 x 75.2 x 8.7 mm (6.27 x 2.96 x 0.34 in) |
115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in) |
| SIM |
Nano-SIM + Nano-SIM |
Micro-SIM |
| Weight |
186.7 g (6.60 oz) |
140 g (4.94 oz) |
| |
- |
Scratch-resistant glass back panel |
| Comms |
| Bluetooth |
5.0, A2DP, LE |
4.0, A2DP, LE |
| NFC |
No |
- |
| Positioning |
GPS, GLONASS, GALILEO, BDS |
GPS, A-GPS, GLONASS |
| Radio |
FM radio |
No |
| USB |
USB Type-C 2.0, OTG |
2.0 |
| WLAN |
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
Wi-Fi 802.11 b/g/n, hotspot |
| Display |
| Protection |
- |
Corning Gorilla Glass, oleophobic coating |
| Resolution |
1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density) |
640 x 960 pixels, 3:2 ratio (~330 ppi density) |
| Size |
6.38 inches, 99.9 cm2 (~83.4% screen-to-body ratio) |
3.5 inches, 36.5 cm2 (~54.0% screen-to-body ratio) |
| Type |
Super AMOLED |
IPS LCD |
| Features |
| Sensors |
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
Accelerometer, gyro, proximity, compass |
| Launch |
| Announced |
2020, September 15 |
2011, October 04. Released 2011, October 14 |
| Status |
Available. Released 2020, September 19 |
Discontinued |
| Main Camera |
| Features |
LED flash, HDR, panorama |
LED flash, panorama, HDR |
| Quad |
48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 120˚, (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth) |
- |
| Single |
- |
8 MP, f/2.4, 35mm (standard), 1/3.2", 1.4µm, AF |
| Video |
1080p@30fps, gyro-EIS |
1080p@30fps |
| Memory |
| Card slot |
microSDXC (uses shared SIM slot) |
No |
| Internal |
128GB 4GB RAM |
8GB 512MB RAM, 16GB 512MB RAM, 32GB 512MB RAM, 64GB 512MB RAM |
| Misc |
| Colors |
Mystic Black, Jazzy Blue, Dreamy White |
Black, White |
| Models |
- |
A1431, A1387, iPhone4,1 |
| SAR |
- |
1.18 W/kg (head) 0.98 W/kg (body) |
| SAR EU |
- |
0.99 W/kg (head) 0.99 W/kg (body) |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G bands |
1, 3, 5, 8, 40 |
- |
| Speed |
HSPA, LTE |
HSPA 14.4/5.76 Mbps |
| Technology |
GSM / HSPA / LTE |
GSM / CDMA / HSPA / EVDO |
| |
- |
CDMA2000 1xEV-DO |
| Platform |
| Chipset |
Qualcomm SDM665 Snapdragon 665 (11 nm) |
Apple A5 (45 nm) |
| CPU |
Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
Dual-core 1.0 GHz Cortex-A9 |
| GPU |
Adreno 610 |
PowerVR SGX543MP2 |
| OS |
Android 10, Funtouch 10 |
iOS 5, upgradable to iOS 9.3.6 |
| Selfie camera |
| Features |
HDR |
- |
| Single |
16 MP, f/2.0, (wide), 1/3.06" 1.0µm |
VGA, videocalling over Wi-Fi and 3G |
| Video |
1080p@30fps |
480p@30fps |
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
| Tests |
| Audio quality |
- |
Noise -91.2dB / Crosstalk -93.0dB |
| Battery (old) |
- |
Endurance rating 45h |
| Camera |
- |
Photo / Video |
| Display |
- |
Contrast ratio: 1261:1 (nominal) / 2.269:1 (sunlight) |
| Loudspeaker |
- |
Voice 65dB / Noise 64dB / Ring 74dB |
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