Screen size
14x6.7"
C51sWinner: 6.7"+1%
Quick verdict
14x leads the measured specs 10-4.
Measured wins
14x
10
spec wins
Overall winner
Ties
7
equal specs
C51s
4
spec wins
Screen size
Technology
14x
GSM / HSPA / LTE / 5G
C51s
GSM / HSPA / LTE
2G bands
14x
GSM 850 / 900 / 1800 / 1900
C51s
GSM 850 / 900 / 1800 / 1900
3G bands
14x
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
C51s
HSDPA 900 / 2100
4G bands
14x
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 40, 41, 66
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
equal specsFront camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
C51s
1, 3, 5, 8, 38, 40
5G bands
14x
1, 2, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 66, 77, 78 SA/NSA
C51s
-
Speed
14x
HSPA, LTE, 5G
C51s
HSPA, LTE
Announced
14x
2025, January 24
C51s
2024, March 15
Status
14x
Available. Released 2025, January 24
C51s
Available. Released 2024, March 15
Dimensions
14x
165.7 x 76.2 x 7.9 mm (6.52 x 3.00 x 0.31 in)
C51s
167.2 x 76.7 x 7.5 mm (6.58 x 3.02 x 0.30 in)
Weight
14x
190 g (6.70 oz)
C51s
182 g (6.42 oz)
SIM
14x
Nano-SIM + Nano-SIM
C51s
Nano-SIM + Nano-SIM
Other
14x
IP64 dust tight and water resistant (water splashes) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
C51s
IP54 dust protected and water resistant (water splashes)
Build
14x
-
C51s
Glass front, plastic frame, plastic back
Type
14x
IPS LCD, 120Hz, 625 nits
C51s
IPS LCD, 90Hz, 560 nits (peak)
Size
14x
6.67 inches, 107.2 cm2 (~84.9% screen-to-body ratio)
C51s
6.74 inches, 109.7 cm2 (~85.5% screen-to-body ratio)
Resolution
14x
720 x 1604 pixels, 20:9 ratio (~264 ppi density)
C51s
720 x 1600 pixels, 20:9 ratio (~260 ppi density)
Protection
14x
Mohs level 5
C51s
-
OS
14x
Android 15, Realme UI 6.0
C51s
Android 13, Realme UI
Chipset
14x
Mediatek Dimensity 6300 (6 nm)
C51s
Unisoc Tiger T612 (12 nm)
CPU
14x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
C51s
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU
14x
Mali-G57 MC2
C51s
Mali-G57
Card slot
14x
microSDXC (uses shared SIM slot)
C51s
microSDXC (dedicated slot)
Internal
14x
128GB 6GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
C51s
128GB 6GB RAM
Other
14x
-
C51s
еMMC 5.1
Single
14x
50 MP, f/1.8, 27mm (wide), 1/2.88", 0.61µm, PDAF
C51s
50 MP, f/1.8, 27mm (wide), 1/2.76", 0.64µm, PDAF Auxiliary lens
Features
14x
LED flash, HDR, panorama
C51s
LED flash, HDR, panorama
Video
14x
1080p@30fps
C51s
1080p@30fps
Single
14x
8 MP, (wide)
C51s
5 MP, f/2.2, 28mm (wide), 1/5.0", 1.12µm
Video
14x
1080p@30fps
C51s
720p@30fps
Features
14x
-
C51s
HDR
Loudspeaker
14x
Yes
C51s
Yes
3.5mm jack
14x
Yes
C51s
Yes
Other
14x
24-bit/192kHz Hi-Res audio
C51s
-
WLAN
14x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
C51s
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
14x
5.3, A2DP, LE
C51s
5.0, A2DP, LE
Positioning
14x
GPS, GALILEO, GLONASS, QZSS, BDS
C51s
GPS, GLONASS, GALILEO
NFC
14x
Yes
C51s
Yes, 360˚ (market/region dependent)
Radio
14x
No
C51s
Unspecified
USB
14x
USB Type-C 2.0
C51s
USB Type-C
Sensors
14x
Fingerprint (side-mounted), accelerometer, proximity, compass
C51s
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Type
14x
5000 mAh
C51s
5000 mAh
Charging
14x
15W wired
C51s
33W wired, 0-50% in 28 min
Colors
14x
Peridot Green, Carbon Black
C51s
Shiny Green, Mighty Black
Models
14x
RMX5020, RMX3943
C51s
RMX3765
Price
14x
$ 145.00 / £ 171.22 / € 129.00
C51s
About 100 EUR