Product
Realme C51s
Realme C51s
Vivo Y90
Vivo Y90
Battery
Charging 33W wired, 0-50% in 28 min -
Type 5000 mAh 4030 mAh, non-removable
Body
Build Glass front, plastic frame, plastic back Glass front, plastic back, plastic frame
Dimensions 167.2 x 76.7 x 7.5 mm (6.58 x 3.02 x 0.30 in) 155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 182 g (6.42 oz) 163.5 g (5.78 oz)
  IP54 dust protected and water resistant (water splashes) -
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
NFC Yes, 360˚ (market/region dependent) No
Positioning GPS, GLONASS, GALILEO GPS, GLONASS, GALILEO
Radio Unspecified FM radio
USB USB Type-C microUSB 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Resolution 720 x 1600 pixels, 20:9 ratio (~260 ppi density) 720 x 1520 pixels, 19:9 ratio (~270 ppi density)
Size 6.74 inches, 109.7 cm2 (~85.5% screen-to-body ratio) 6.22 inches, 96.6 cm2 (~82.9% screen-to-body ratio)
Type IPS LCD, 90Hz, 560 nits (peak) IPS LCD
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass Accelerometer, proximity, compass
Launch
Announced 2024, March 15 2019, July. Released 2019, July
Status Available. Released 2024, March 15 Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, panorama
Single 50 MP, f/1.8, 27mm (wide), 1/2.76", 0.64µm, PDAF 0.08 MP, f/3.0 ,(auxiliary lens) 8 MP, f/2.0, AF
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 128GB 6GB RAM 16GB 2GB RAM, 32GB 2GB RAM
  еMMC 5.1 eMMC 5.1
Misc
Colors Shiny Green, Mighty Black Black, Gold
Models RMX3765 1908, 1823
SAR - 1.28 W/kg (head)     0.61 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 38, 40 1, 3, 5, 8, 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 Unisoc Tiger T612 (12 nm) Mediatek MT6761 Helio A22 (12 nm)
CPU Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55) Quad-core 2.0 GHz Cortex-A53
GPU Mali-G57 PowerVR GE8320
OS Android 13, Realme UI Android 8.1 (Oreo), Funtouch 4.5
Selfie camera
Features HDR -
Single 5 MP, f/2.2, 28mm (wide), 1/5.0", 1.12µm 5 MP, f/1.8
Video 720p@30fps 720p
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes