Product
Vivo iQOO Z1x
Vivo iQOO Z1x
Apple iPhone 4s
Apple iPhone 4s
Battery
Charging 33W 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 (Corning-made glass), glass back, stainless steel frame
Dimensions 164.2 x 76.5 x 9.1 mm (6.46 x 3.01 x 0.36 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 199.5 g (7.05 oz) 140 g (4.94 oz)
  - Scratch-resistant glass back panel
Comms
Bluetooth 5.1, A2DP, LE, aptX HD 4.0, A2DP, LE
NFC Yes -
Positioning GPS, GLONASS, BDS, GALILEO GPS, A-GPS, GLONASS
Radio No 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 (~400 ppi density) 640 x 960 pixels, 3:2 ratio (~330 ppi density)
Size 6.57 inches, 105.0 cm2 (~83.6% screen-to-body ratio) 3.5 inches, 36.5 cm2 (~54.0% screen-to-body ratio)
Type IPS LCD, 120Hz, HDR10 IPS LCD
Features
Sensors Fingerprint (side-mounted), accelerometer, proximity, compass Accelerometer, gyro, proximity, compass
Launch
Announced 2020, July 09 2011, October 04. Released 2011, October 14
Status Available. Released 2020, July 25 Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, panorama, HDR
Single - 8 MP, f/2.4, 35mm (standard), 1/3.2", 1.4µm, AF
Triple 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Video 4K@30fps, 1080p@30fps; gyro-EIS 1080p@30fps
Memory
Card slot No No
Internal 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM 8GB 512MB RAM, 16GB 512MB RAM, 32GB 512MB RAM, 64GB 512MB RAM
  UFS 2.1 -
Misc
Colors Black, Blue, White Black, White
Models V2012A 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) / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 3, 4, 5, 8, 34, 38, 39, 40, 41 -
5G bands 1, 3, 41, 77, 78 SA/NSA -
Speed HSPA, LTE (2CA), 5G HSPA 14.4/5.76 Mbps
Technology GSM / CDMA / HSPA / EVDO / LTE / 5G GSM / CDMA / HSPA / EVDO
  CDMA2000 1xEV-DO CDMA2000 1xEV-DO
Platform
Chipset Qualcomm SM7250 Snapdragon 765G 5G (7 nm) Apple A5 (45 nm)
CPU Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) Dual-core 1.0 GHz Cortex-A9
GPU Adreno 620 PowerVR SGX543MP2
OS Android 10, iQOO UI 1.0 iOS 5, upgradable to iOS 9.3.6
Selfie camera
Features HDR -
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
  24-bit/192kHz Hi-Res audio -
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