Product
Vivo U10
Vivo U10
Samsung Z4
Samsung Z4
Battery
Charging 18W wired -
Type 5000 mAh, non-removable Li-Ion 2050 mAh, removable
Body
Build Glass front, plastic back, plastic frame -
Dimensions 159.4 x 76.8 x 8.9 mm (6.28 x 3.02 x 0.35 in) 132.9 x 69.2 x 10.3 mm (5.23 x 2.72 x 0.41 in)
SIM Nano-SIM + Nano-SIM Single SIM (Micro-SIM) or Hybrid Dual SIM (Micro-SIM, dual stand-by)
Weight 190.5 g (6.70 oz) 143 g (5.04 oz)
Comms
Bluetooth 5.0, A2DP, LE 4.0, A2DP, LE
NFC No No
Positioning GPS, GLONASS GPS, GLONASS
Radio FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0, OTG
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 720 x 1544 pixels, 19.3:9 ratio (~268 ppi density) 480 x 800 pixels, 5:3 ratio (~207 ppi density)
Size 6.35 inches, 99.6 cm2 (~81.4% screen-to-body ratio) 4.5 inches, 57.6 cm2 (~62.7% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Accelerometer, proximity
Launch
Announced 2019, September. Released 2019, September 2017, May. Released 2017, June
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama Dual-LED flash, panorama, HDR
Single - 5 MP, f/2.2
Triple 13 MP, f/2.2, (wide), PDAF 8 MP, f/2.2, 13mm (ultrawide) 2 MP, f/2.4, (depth) -
Video 1080p@30fps 720p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (uses shared SIM slot)
Internal 32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM 8GB 1GB RAM
Misc
Colors Thunder Black, Electric Blue, Black, Blue, Red Black, Gold
Models 1916, V1928A SM-Z400F, SM-Z400Y
SAR 1.05 W/kg (head)     0.45 W/kg (body)     -
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands HSDPA 850 / 900 / 2100 HSDPA 900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 LTE
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 400/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Platform
Chipset Qualcomm SDM665 Snapdragon 665 (11 nm) -
CPU Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Quad-core 1.5 GHz
GPU Adreno 610 -
OS Android 9.0 (Pie), Funtouch 9.1 Tizen 3.0
Selfie camera
Features - LED flash
Single 8 MP, f/1.8 5 MP, f/2.2
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes