Screen size
C51sWinner: 6.7"+0.3%
P3x6.7"
Quick verdict
P3x leads the measured specs 12-5.
Measured wins
C51s
5
spec wins
Ties
4
equal specs
P3x
12
spec wins
Overall winner
Screen size
Technology
C51s
GSM / HSPA / LTE
P3x
GSM / HSPA / LTE / 5G
2G bands
C51s
GSM 850 / 900 / 1800 / 1900
P3x
GSM 850 / 900 / 1800 / 1900
3G bands
C51s
HSDPA 900 / 2100
P3x
HSDPA 850 / 900 / 2100
4G bands
C51s
1, 3, 5, 8, 38, 40
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
3.5mm jack
SD card
equal specsStereo speakers
P3x
1, 3, 5, 8, 28, 40, 41
Speed
C51s
HSPA, LTE
P3x
HSPA, LTE, 5G
5G bands
C51s
-
P3x
1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
Announced
C51s
2024, March 15
P3x
2025, February 18
Status
C51s
Available. Released 2024, March 15
P3x
Available. Released 2025, February 28
Dimensions
C51s
167.2 x 76.7 x 7.5 mm (6.58 x 3.02 x 0.30 in)
P3x
165.7 x 76.2 x 7.9 mm (6.52 x 3.00 x 0.31 in)
Weight
C51s
182 g (6.42 oz)
P3x
197 g (6.95 oz)
Build
C51s
Glass front, plastic frame, plastic back
P3x
Glass front, aluminum frame, plastic back or silicone polymer back (eco leather)
SIM
C51s
Nano-SIM + Nano-SIM
P3x
Nano-SIM + Nano-SIM
Other
C51s
IP54 dust protected and water resistant (water splashes)
P3x
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Type
C51s
IPS LCD, 90Hz, 560 nits (peak)
P3x
IPS LCD, 120Hz, 950 nits (peak)
Size
C51s
6.74 inches, 109.7 cm2 (~85.5% screen-to-body ratio)
P3x
6.72 inches, 109.0 cm2 (~86.3% screen-to-body ratio)
Resolution
C51s
720 x 1600 pixels, 20:9 ratio (~260 ppi density)
P3x
1080 x 2400 pixels, 20:9 ratio (~392 ppi density)
Protection
C51s
-
P3x
ArmorShell glass
OS
C51s
Android 13, Realme UI
P3x
Android 15, Realme UI 6.0
Chipset
C51s
Unisoc Tiger T612 (12 nm)
P3x
Mediatek Dimensity 6400 (6 nm)
CPU
C51s
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
P3x
Octa-core (2x2.5 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
C51s
Mali-G57
P3x
Mali-G57 MC2
Card slot
C51s
microSDXC (dedicated slot)
P3x
microSDXC (uses shared SIM slot)
Internal
C51s
128GB 6GB RAM
P3x
128GB 6GB RAM, 128GB 8GB RAM
Other
C51s
еMMC 5.1
P3x
eMMC 5.1
Single
C51s
50 MP, f/1.8, 27mm (wide), 1/2.76", 0.64µm, PDAF Auxiliary lens
P3x
-
Features
C51s
LED flash, HDR, panorama
P3x
LED flash, HDR, panorama
Video
C51s
1080p@30fps
P3x
1080p@30/60fps
Dual
C51s
-
P3x
50 MP, f/1.8, 27mm (wide), 2.88", 0.61µm, PDAF Auxiliary lens
Single
C51s
5 MP, f/2.2, 28mm (wide), 1/5.0", 1.12µm
P3x
8 MP, f/2.0, (wide)
Features
C51s
HDR
P3x
Panorama
Video
C51s
720p@30fps
P3x
1080p@30fps
Loudspeaker
C51s
Yes
P3x
Yes
3.5mm jack
C51s
Yes
P3x
No
Other
C51s
-
P3x
24-bit/192kHz Hi-Res audio
WLAN
C51s
Wi-Fi 802.11 a/b/g/n/ac, dual-band
P3x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
C51s
5.0, A2DP, LE
P3x
5.3, A2DP, LE, aptX HD, BLE Audio
Positioning
C51s
GPS, GLONASS, GALILEO
P3x
GPS, GALILEO, GLONASS, QZSS, BDS
NFC
C51s
Yes, 360˚ (market/region dependent)
P3x
No
Radio
C51s
Unspecified
P3x
No
USB
C51s
USB Type-C
P3x
USB Type-C 2.0, OTG
Sensors
C51s
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
P3x
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Type
C51s
5000 mAh
P3x
Si/C Li-Ion 6000 mAh
Charging
C51s
33W wired, 0-50% in 28 min
P3x
45W wired 5W reverse wired
Colors
C51s
Shiny Green, Mighty Black
P3x
Midnight Blue, Stellar Pink, Lunar Silver
Models
C51s
RMX3765
P3x
RMX3944
Price
C51s
About 100 EUR
P3x
About 140 EUR