Product
Vivo Y21G
Vivo Y21G
Samsung Galaxy J6+
Samsung Galaxy J6+
Battery
Charging 18W wired -
Type 5000 mAh Li-Ion 3300 mAh, non-removable
Body
Build Glass front, plastic frame, plastic back Glass front, plastic back, plastic frame
Dimensions 164.3 x 76.1 x 8 mm (6.47 x 3.00 x 0.31 in) 161.4 x 76.9 x 7.9 mm (6.35 x 3.03 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 182 g (6.42 oz) 178 g (6.28 oz)
Comms
Bluetooth 5.0, A2DP, LE 4.2, A2DP, LE
NFC No Yes (market dependent)
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, BDS
Radio FM radio Stereo FM radio, recording
USB USB Type-C 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 1600 pixels, 20:9 ratio (~270 ppi density) 720 x 1480 pixels, 18.5:9 ratio (~274 ppi density)
Size 6.51 inches, 102.3 cm2 (~81.8% screen-to-body ratio) 6.0 inches, 91.4 cm2 (~73.6% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Fingerprint (side-mounted), accelerometer, proximity, compass Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
  - ANT+
Launch
Announced 2022, April 07 2018, September. Released 2018, October
Status Available. Released 2022, April 07 Discontinued
Main Camera
Dual 13 MP, f/2.2, (wide), PDAF 2 MP, f/2.4, (macro) 13 MP, f/1.9, 28mm (wide), AF 5 MP, f/1.9, (depth)
Features LED flash LED flash, panorama, HDR
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 64GB 4GB RAM 32GB 3GB RAM, 64GB 4GB RAM
  - eMMC 5.1
Misc
Colors Diamond Glow, Midnight Blue Black, Gray, Red, Blue
Models V2152 SM-J610F, SM-J610F, SM-J610G, SM-J610FN
SAR EU - 0.31 W/kg (head)     1.33 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, 38, 40, 41 1, 3, 5, 7, 8, 20, 38, 40, 41
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Platform
Chipset Mediatek MT6769 Helio G70 (12 nm) Qualcomm MSM8917 Snapdragon 425 (28 nm)
CPU Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55) Quad-core 1.4 GHz Cortex-A53
GPU Mali-G52 2EEMC2 Adreno 308
OS Android 11, Funtouch 11.1 Android 8.1 (Oreo), upgradable to Android 10, One UI 2
Selfie camera
Features - LED flash
Single 8 MP, f/2.0, (wide) 8 MP, f/1.9
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes