Screen size
C100iWinner: 6.8"+4.4%
C156.5"
Quick verdict
C100i leads the measured specs 9-6.
Measured wins
C100i
9
spec wins
Overall winner
Ties
6
equal specs
C15
6
spec wins
Screen size
Technology
C100i
GSM / HSPA / LTE
C15
GSM / HSPA / LTE
2G bands
C100i
GSM 850 / 900 / 1800 / 1900
C15
GSM 850 / 900 / 1800 / 1900
3G bands
C100i
HSDPA 850 / 900 / 2100
C15
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
Storage
Main 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
C15
1, 3, 5, 8, 38, 40, 41
Speed
C100i
HSPA, LTE
C15
HSPA, LTE
Announced
C100i
2026, April 30
C15
2020, July 28. Released 2020, July 28
Status
C100i
Released May 7, 2026
C15
Discontinued
Dimensions
C100i
166.5 x 78.2 x 8.4 mm (6.56 x 3.08 x 0.33 in)
C15
164.5 x 75.9 x 9.8 mm (6.48 x 2.99 x 0.39 in)
Weight
C100i
208 g (7.34 oz)
C15
209 g (7.37 oz)
Build
C100i
Glass front, plastic frame, plastic back
C15
Glass front, plastic frame, plastic back
SIM
C100i
Nano-SIM + Nano-SIM
C15
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
C15
-
Type
C100i
IPS LCD, 120Hz
C15
IPS LCD
Size
C100i
6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio)
C15
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)
C15
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Protection
C100i
Panda MN228 or Corning Gorilla Glass
C15
Corning Gorilla Glass
OS
C100i
Android 16
C15
Android 10, Realme UI
Chipset
C100i
Unisoc T7250 (12 nm)
C15
Mediatek MT6765G Helio G35 (12 nm)
CPU
C100i
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
C15
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU
C100i
Mali-G57 MP1
C15
PowerVR GE8320
Card slot
C100i
microSDXC
C15
microSDXC (dedicated slot)
Internal
C100i
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
C15
32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM
Other
C100i
eMMC 5.1
C15
eMMC 5.1
Single
C100i
8 MP, f/2.0, (wide), AF
C15
-
Features
C100i
LED flash, HDR, panorama
C15
LED flash, HDR, panorama
Video
C100i
1080p@30fps
C15
1080p@30fps
Quad
C100i
-
C15
13 MP, f/2.2, (wide), PDAF 8 MP, f/2.3, 119˚ (ultrawide) 2 MP B/W, f/2.4 2 MP, f/2.4
Single
C100i
5 MP, f/2.2, (wide)
C15
8 MP, f/2.0, (wide)
Video
C100i
720p@30fps
C15
1080p@30fps
Features
C100i
-
C15
HDR, panorama
Loudspeaker
C100i
Yes
C15
Yes
3.5mm jack
C100i
Yes
C15
Yes
WLAN
C100i
Wi-Fi 802.11 a/b/g/n/ac, dual-band
C15
Wi-Fi 802.11 b/g/n
Bluetooth
C100i
5.2, A2DP, LE
C15
5.0, A2DP, LE, aptX
Positioning
C100i
GPS, GALILEO, GLONASS, BDS
C15
GPS, GLONASS, BDS
NFC
C100i
No
C15
No
Radio
C100i
Unspecified
C15
FM radio
USB
C100i
USB Type-C 2.0, OTG
C15
microUSB 2.0, OTG
Sensors
C100i
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
C15
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
C100i
Si/C Li-Ion 7000 mAh
C15
6000 mAh
Charging
C100i
15W wired, PD, QC Reverse wired
C15
18W wired
Colors
C100i
Dawn Purple, Dusk Gray
C15
Marine Blue, Seagull Silver
Models
C100i
RMX5377
C15
RMX2180
Price
C100i
About 110 EUR
C15
About 160 EUR