Product
Vivo Y77
Vivo Y77
Apple iPhone 4s
Apple iPhone 4s
Battery
Charging 18W wired -
Stand-by - Up to 200 h (3G)
Talk time - Up to 8 h (3G)
Type 5000 mAh Li-Po 1432 mAh, non-removable (5.3 Wh)
Body
Build Glass front, plastic frame, plastic back Glass front (Corning-made glass), glass back, stainless steel frame
Dimensions 164 x 75.8 x 8.3 mm (6.46 x 2.98 x 0.33 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 194 g (6.84 oz) 140 g (4.94 oz)
  - Scratch-resistant glass back panel
Comms
Bluetooth 5.1, A2DP, LE, aptX HD 4.0, A2DP, LE
NFC No -
Positioning GPS, GLONASS, GALILEO, BDS, QZSS 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 2408 pixels, 20:9 ratio (~401 ppi density) 640 x 960 pixels, 3:2 ratio (~330 ppi density)
Size 6.58 inches, 104.3 cm2 (~83.9% screen-to-body ratio) 3.5 inches, 36.5 cm2 (~54.0% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Fingerprint (side-mounted), accelerometer, proximity, compass Accelerometer, gyro, proximity, compass
Launch
Announced 2022, July 04 2011, October 04. Released 2011, October 14
Status Available. Released 2022, July 07 Discontinued
Main Camera
Dual 50 MP, f/1.8, 26mm (wide), PDAF 2 MP, f/2.4, (macro) -
Features LED flash, HDR, panorama LED flash, panorama, HDR
Single - 8 MP, f/2.4, 35mm (standard), 1/3.2", 1.4µm, AF
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (uses shared SIM slot) No
Internal 128GB 8GB RAM, 256GB 8GB RAM 8GB 512MB RAM, 16GB 512MB RAM, 32GB 512MB RAM, 64GB 512MB RAM
Misc
Colors Glowing galaxy, Starlight black Black, White
Models V2169 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 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 -
5G bands 1, 3, 28, 40, 41, 78 SA/NSA -
Speed HSPA, LTE, 5G HSPA 14.4/5.76 Mbps
Technology GSM / HSPA / LTE / 5G GSM / CDMA / HSPA / EVDO
  - CDMA2000 1xEV-DO
Platform
Chipset Mediatek Dimensity 810 (6 nm) Apple A5 (45 nm)
CPU Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Dual-core 1.0 GHz Cortex-A9
GPU Mali-G57 MC2 PowerVR SGX543MP2
OS Android 12, Funtouch 12 iOS 5, upgradable to iOS 9.3.6
Selfie camera
Single 16 MP, f/2.0, (wide) 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