Product
Realme C51
Realme C51
Google Pixel 4a
Google Pixel 4a
Battery
Charging 33W wired, 0-50% in 28 min 18W wired, PD2.0
Type 5000 mAh Li-Po 3140 mAh
Body
Build Glass front, plastic frame, plastic back Glass front (Gorilla Glass 3), plastic back, plastic frame
Dimensions 167.2 x 76.7 x 8 mm (6.58 x 3.02 x 0.31 in) 144 x 69.4 x 8.2 mm (5.67 x 2.73 x 0.32 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + eSIM
Weight 186 g (6.56 oz) 143 g (5.04 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE, aptX HD
NFC Yes, 360˚ (market/region dependent) Yes
Positioning GPS, GLONASS, GALILEO GPS, GLONASS, GALILEO, QZSS, BDS
Radio Unspecified No
USB USB Type-C 2.0, OTG USB Type-C 3.1
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Display
Protection - Corning Gorilla Glass 3
Resolution 720 x 1600 pixels, 20:9 ratio (~260 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~443 ppi density)
Size 6.74 inches, 109.7 cm2 (~85.5% screen-to-body ratio) 5.81 inches, 83.2 cm2 (~83.3% screen-to-body ratio)
Type IPS LCD, 90Hz, 560 nits (peak) OLED, HDR
Features
Sensors Fingerprint (side-mounted), accelerometer, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2023, July 24 2020, August 03
Status Available. Released 2023, August Available. Released 2020, August 20
Main Camera
Features LED flash, HDR, panorama LED flash, Pixel Shift, Auto-HDR, panorama
Single 50 MP, f/1.8, 27mm (wide), 1/2.76", 0.64µm, PDAF 0.08 MP, f/3.0 ,(auxiliary lens) 12.2 MP, f/1.7, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS
Video 1080p@30fps 4K@30fps, 1080p@30/60/120fps; gyro-EIS
Memory
Card slot microSDXC (dedicated slot) No
Internal 64GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM, 256GB 6GB RAM 128GB 6GB RAM
  еMMC 5.1 UFS 2.1
Misc
Colors Mint Green, Carbon Black Just Black, Barely Blue
Models RMX3830 G025J, GA02099, G025N
SAR 1.18 W/kg (head)     0.78 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 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 - Africa, India 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 66, 71
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/75 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
  1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - Asia -
Platform
Chipset Unisoc Tiger T612 (12 nm) Qualcomm SDM730 Snapdragon 730G (8 nm)
CPU Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55) Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
GPU Mali-G57 Adreno 618
OS Android 13, Realme UI T Android 10, upgradable to Android 13
Selfie camera
Features HDR HDR
Single 5 MP, f/2.2, 28mm (wide), 1/5.0", 1.12µm 8 MP, f/2.0, 24mm (wide), 1.12µm
Video 720p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes, with stereo speakers
Tests
Battery (old) - Endurance rating 76h
Display - 803 nits max brightness (measured)
Performance - AnTuTu: 268714 (v8)GeekBench: 6426 (v4.4), 1626 (v5.1)GFXBench: 17fps (ES 3.1 onscreen)