Product
Vivo U3
Vivo U3
Honor 7X
Honor 7X
Battery
Charging 18W wired 5W reverse wired -
Stand-by - Up to 647 h (3G)
Talk time - Up to 21 h (3G)
Type 5000 mAh, non-removable Li-Ion 3340 mAh, non-removable
Body
Build Glass front, plastic back, plastic frame Glass front, aluminum back, aluminum frame
Dimensions 162.2 x 76.5 x 8.9 mm (6.39 x 3.01 x 0.35 in) 156.5 x 75.3 x 7.6 mm (6.16 x 2.96 x 0.30 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 193 g (6.81 oz) 165 g (5.82 oz)
Comms
Bluetooth 5.0, A2DP, LE, aptX 4.1, A2DP, EDR, LE
NFC No No
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS
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 2340 pixels, 19.5:9 ratio (~395 ppi density) 1080 x 2160 pixels, 18:9 ratio (~407 ppi density)
Size 6.53 inches, 104.7 cm2 (~84.4% screen-to-body ratio) 5.93 inches, 90.7 cm2 (~77.0% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, proximity, compass
Launch
Announced 2019, October. Released 2019, October 2017, December. Released 2017, December
Status Discontinued Discontinued
Main Camera
Dual - 16 MP, f/2.2, 26mm (wide), 1/2.9", 1.25µm, PDAF 2 MP, (depth)
Features LED flash, HDR, panorama LED flash, HDR, panorama
Triple 16 MP, f/1.8, (wide), PDAF 8 MP, f/2.2, 13mm (ultrawide) 2 MP, f/2.4, (macro) -
Video 4K@30fps, 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
Internal 64GB 4GB RAM, 64GB 6GB RAM 32GB 3GB RAM, 32GB 4GB RAM, 64GB 4GB RAM, 128GB 4GB RAM
  UFS 2.1 eMMC 5.1
Misc
Colors Black, Blue, Green Black, Blue, Gold, Red, Gray
Models V1941A, V1941T BND-AL10, BND-TL10, BND-L21, BND-L22, BND-L24, BND-L31, BND-L2, BND-L34, BND-AL00
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 3, 4, 5, 8, 34, 38, 39, 40, 41 1, 3, 5, 7, 8, 20, 40
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE
  CDMA 800 & TD-SCDMA -
Our Tests
Audio quality - Noise -89.5dB / Crosstalk -86.6dB
Battery (old) - Endurance rating 77h
Camera - Photo / Video
Display - Contrast ratio: 1941 (nominal), 2.734 (sunlight)
Loudspeaker - Voice 66dB / Noise 71dB / Ring 85dB
Performance - AnTuTu: 67636 (v7) GeekBench: 3535 (v4.4) GFXBench: 2.8fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm SDM675 Snapdragon 675 (11 nm) Kirin 659 (16 nm)
CPU Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver) Octa-core (4x2.36 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53)
GPU Adreno 612 Mali-T830 MP2
OS Android 9.0 (Pie), Funtouch 9.0 Android 7.0 (Nougat), upgradable to Android 8.0 (Oreo), EMUI 5.1
Selfie camera
Features HDR -
Single 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 8 MP, f/2.0, 27mm (wide)
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes