Screen size
C100xWinner: 6.8"+4.4%
C25s6.5"
Quick verdict
C100x leads the measured specs 11-5.
Measured wins
C100x
11
spec wins
Overall winner
Ties
6
equal specs
C25s
5
spec wins
Screen size
Technology
C100x
GSM / HSPA / LTE
C25s
GSM / HSPA / LTE
2G bands
C100x
GSM 850 / 900 / 1800 / 1900
C25s
GSM 850 / 900 / 1800 / 1900
3G bands
C100x
HSDPA 900 / 2100
C25s
HSDPA 850 / 900 / 2100
4G bands
C100x
1, 3, 5, 8, 40
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
C25s
1, 3, 5, 7, 8, 20, 28, 38, 40, 41
Speed
C100x
HSPA, LTE
C25s
HSPA, LTE
Announced
C100x
2026, May 07
C25s
2021, June 08
Status
C100x
Released May 15, 2026
C25s
Available. Released 2021, June 09
Dimensions
C100x
166.5 x 78.2 x 8.6 mm (6.56 x 3.08 x 0.34 in)
C25s
164.5 x 75.9 x 9.6 mm (6.48 x 2.99 x 0.38 in)
Weight
C100x
219 g (7.72 oz)
C25s
209 g (7.37 oz)
Build
C100x
Glass front, plastic frame, plastic back
C25s
Glass front, plastic back, plastic frame
SIM
C100x
Nano-SIM + Nano-SIM
C25s
Nano-SIM + Nano-SIM
Other
C100x
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 RGB light on the back (notifications, etc.)
C25s
-
Type
C100x
IPS LCD, 120Hz, 900 nits (HBM)
C25s
IPS LCD, 480 nits (typ), 570 nits (peak)
Size
C100x
6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio)
C25s
6.5 inches, 102.0 cm2 (~81.7% screen-to-body ratio)
Resolution
C100x
720 x 1570 pixels, 19.5:9 ratio (~254 ppi density)
C25s
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Protection
C100x
ArmorShell glass, Mohs level 5
C25s
-
OS
C100x
Android 16
C25s
Android 11, Realme UI 2.0
Chipset
C100x
Unisoc T7250 (12 nm)
C25s
Mediatek MT6769Z Helio G85 (12 nm)
CPU
C100x
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
C25s
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU
C100x
Mali-G57 MP1
C25s
Mali-G52 MC2
Card slot
C100x
microSDXC
C25s
microSDXC (dedicated slot)
Internal
C100x
128GB 4GB RAM, 128GB 6GB RAM, 256GB 4GB RAM, 256GB 6GB RAM
C25s
64GB 4GB RAM, 128GB 4GB RAM
Other
C100x
eMMC 5.1
C25s
eMMC 5.1
Dual
C100x
50 MP, f/1.8, (wide), PDAF Auxiliary lens
C25s
-
Features
C100x
LED flash, HDR, panorama
C25s
LED flash, HDR, panorama
Video
C100x
1080p@30fps
C25s
1080p@30/60fps
Triple
C100x
-
C25s
48 MP, f/1.8, 26mm (wide), PDAF (International model) or 13 MP, f/2.2, 26mm (wide), 1/3.06", 1.12µm, PDAF (India model) 2 MP (macro) Auxiliary lens
Single
C100x
5 MP, f/2.2, (wide)
C25s
8 MP, f/2.0, 26mm (wide), 1/4.0", 1.12µm
Video
C100x
720p@30fps
C25s
1080p@30fps
Features
C100x
-
C25s
HDR, panorama
Loudspeaker
C100x
Yes
C25s
Yes
3.5mm jack
C100x
Yes
C25s
Yes
WLAN
C100x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
C25s
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
C100x
5.2, A2DP, LE
C25s
5.0, A2DP, LE
Positioning
C100x
GPS, GALILEO, GLONASS, BDS
C25s
GPS, GLONASS, BDS
NFC
C100x
Yes (market/region dependent)
C25s
No
Radio
C100x
Unspecified
C25s
Unspecified
USB
C100x
USB Type-C 2.0, OTG
C25s
USB Type-C 2.0, OTG
Sensors
C100x
Fingerprint (side-mounted), accelerometer, proximity, compass
C25s
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
C100x
Si/C Li-Ion 8000 mAh
C25s
6000 mAh
Charging
C100x
45W wired, 45W PPS, 13.5W PD Reverse wired
C25s
18W wired 5W reverse wired
Colors
C100x
Golden Coast, Deepblue Tides
C25s
Water Blue, Water Gray
Models
C100x
RMX5366
C25s
RMX3195, RMX3197
Price
C100x
About 160 EUR
C25s
About 180 EUR