Realme C51 vs Realme C75 5G
Product
Price
159 USD
159 USD
Status
Available
Available
Brand
Realme Mobiles
Realme Mobiles
Model No
RMX3830
RMX3943
Launch Date
2023, August 01
2025, May 08
Website
Technology
GSM / HSPA / LTE
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 2100
HSDPA 850 / 900 / 2100
4G bands
1, 3, 5, 8, 38, 40, 41 - Africa, India
1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - Asia
1, 3, 5, 8, 28, 40, 41
Speed
HSPA, LTE-A
HSPA, LTE, 5G
5G bands
1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
Dimensions
167.2 x 76.7 x 8 mm (6.58 x 3.02 x 0.31 in)
165.7 x 76.2 x 7.9 mm (6.52 x 3.00 x 0.31 in)
Weight
186 g (6.56 oz)
190 g (6.70 oz)
Build
Glass front, plastic frame, plastic back
IP64 dust tight and water resistant (water splashes)
Drop resistant up to 2m
MIL-STD-810H compliant*
* does not guarantee ruggedness or use in extreme conditions
SIM
Dual SIM (Nano-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Colors
Mint Green, Carbon Black
Midnight Lily, Purple Blossom, Lily White
Type
IPS LCD, 90Hz, 560 nits (peak)
IPS LCD, 120Hz, 625 nits
Size
6.74 inches, 109.7 cm2 (~85.5% screen-to-body ratio)
6.67 inches, 107.2 cm2 (~84.9% screen-to-body ratio)
Resolution
720 x 1600 pixels, 20:9 ratio (~260 ppi densit
720 x 1604 pixels, 20:9 ratio (~264 ppi density)
OS
Android 13, Realme UI T
Android 15, Realme UI 6.0
Chipset
Unisoc Tiger T612 (12 nm)
Mediatek Dimensity 6300 (6 nm)
CPU
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Mali-G57
Mali-G57 MC2
RAM
4GB
4GB/6GB
Storage
64GB/128GB
еMMC 5.1
64GB/128GB
Card Slot
microSDXC (dedicated slot)
microSDXC (uses shared SIM slot)
Lens 1
50 MP, f/1.8, 27mm (wide), 1/2.76", 0.64µm, PDAF
32 MP, f/1.8, 27mm (wide), 1/3.1", PDAF
Lens 2
0.08 MP, f/3.0, (depth)
Features
LED flash, HDR, panorama
LED flash, panorama
Video
1080p@30fps
1080p@30fps
Lens 1
5 MP, f/2.2, 28mm (wide), 1/5", 1.12µm
8 MP, f/2.0, (wide)
Features
HDR
Panorama
Video
720p@30fps
1080p@30fps
Capacity
Li-Po 5000 mAh, non-removable
Li-Po 6000 mAh
Charging
33W wired, 0-50% in 28 min (advertised)
45W wired
5W reverse wired
Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass
Fingerprint (side-mounted), accelerometer, proximity, compass
Loudspeaker
Yes
Yes
3.5mm jack
Yes
Yes
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
5.0, A2DP, LE
5.3, A2DP, LE
GPS
GPS, GLONASS, GALILEO
GPS, GALILEO, GLONASS, QZSS, BDS
NFC
Yes, 360˚ (market/region dependent)
USB
USB Type-C 2.0, OTG
USB Type-C 2.0, OTG