Screen size
C100iWinner: 6.8"+4.4%
C256.5"
Quick verdict
C100i and C25 are close on the measured specs.
Measured wins
C100i
7
spec wins
Ties
8
equal specs
C25
7
spec wins
Screen size
Technology
C100i
GSM / HSPA / LTE
C25
GSM / HSPA / LTE
2G bands
C100i
GSM 850 / 900 / 1800 / 1900
C25
GSM 850 / 900 / 1800 / 1900
3G bands
C100i
HSDPA 850 / 900 / 2100
C25
HSDPA 850 / 900 / 2100
4G bands
C100i
1, 3, 5, 7, 8, 20, 28, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
C25
1, 3, 5, 8, 38, 40, 41
Speed
C100i
HSPA, LTE
C25
HSPA, LTE
Announced
C100i
2026, April 30
C25
2021, March 23
Status
C100i
Released May 7, 2026
C25
Available. Released 2021, March 27
Dimensions
C100i
166.5 x 78.2 x 8.4 mm (6.56 x 3.08 x 0.33 in)
C25
164.5 x 75.9 x 9.6 mm (6.48 x 2.99 x 0.38 in)
Weight
C100i
208 g (7.34 oz)
C25
209 g (7.37 oz)
Build
C100i
Glass front, plastic frame, plastic back
C25
Glass front, plastic back, plastic frame
SIM
C100i
Nano-SIM + Nano-SIM
C25
Nano-SIM + Nano-SIM
Other
C100i
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
C25
-
Type
C100i
IPS LCD, 120Hz
C25
IPS LCD, 480 nits (typ)
Size
C100i
6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio)
C25
6.5 inches, 102.0 cm2 (~81.7% screen-to-body ratio)
Resolution
C100i
720 x 1570 pixels, 19.5:9 ratio (~254 ppi density)
C25
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Protection
C100i
Panda MN228 or Corning Gorilla Glass
C25
-
OS
C100i
Android 16
C25
Android 11, Realme UI 2.0
Chipset
C100i
Unisoc T7250 (12 nm)
C25
Mediatek MT6769V/CB Helio G70 (12 nm)
CPU
C100i
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
C25
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
GPU
C100i
Mali-G57 MP1
C25
Mali-G52 2EEMC2
Card slot
C100i
microSDXC
C25
microSDXC (dedicated slot)
Internal
C100i
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
C25
64GB 4GB RAM, 128GB 4GB RAM
Other
C100i
eMMC 5.1
C25
eMMC 5.1
Single
C100i
8 MP, f/2.0, (wide), AF
C25
-
Features
C100i
LED flash, HDR, panorama
C25
LED flash, HDR, panorama
Video
C100i
1080p@30fps
C25
1080p@30fps
Triple
C100i
-
C25
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
C100i
5 MP, f/2.2, (wide)
C25
8 MP, f/2.0, 26mm (wide), 1/4.0", 1.12µm
Video
C100i
720p@30fps
C25
1080p@30fps
Features
C100i
-
C25
HDR, panorama
Loudspeaker
C100i
Yes
C25
Yes
3.5mm jack
C100i
Yes
C25
Yes
WLAN
C100i
Wi-Fi 802.11 a/b/g/n/ac, dual-band
C25
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
C100i
5.2, A2DP, LE
C25
5.0, A2DP, LE
Positioning
C100i
GPS, GALILEO, GLONASS, BDS
C25
GPS, GLONASS, BDS
NFC
C100i
No
C25
No
Radio
C100i
Unspecified
C25
Unspecified
USB
C100i
USB Type-C 2.0, OTG
C25
USB Type-C 2.0, OTG
Sensors
C100i
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
C25
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
C100i
Si/C Li-Ion 7000 mAh
C25
6000 mAh
Charging
C100i
15W wired, PD, QC Reverse wired
C25
18W wired 5W reverse wired
Colors
C100i
Dawn Purple, Dusk Gray
C25
Water Blue, Water Gray
Models
C100i
RMX5377
C25
RMX3193, RMX3191
Price
C100i
About 110 EUR
C25
About 140 EUR
SAR
C100i
-
C25
0.82 W/kg (head) 0.81 W/kg (body)