Screen size
C100iWinner: 6.8"+4.4%
C206.5"
Quick verdict
C100i leads the measured specs 9-6.
Measured wins
C100i
9
spec wins
Overall winner
Ties
7
equal specs
C20
6
spec wins
Screen size
Technology
C100i
GSM / HSPA / LTE
C20
GSM / HSPA / LTE
2G bands
C100i
GSM 850 / 900 / 1800 / 1900
C20
GSM 850 / 900 / 1800 / 1900
3G bands
C100i
HSDPA 850 / 900 / 2100
C20
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
equal specsFront camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
C20
1, 3, 5, 8, 38, 40, 41
Speed
C100i
HSPA, LTE
C20
HSPA, LTE
Announced
C100i
2026, April 30
C20
2021, January 19
Status
C100i
Released May 7, 2026
C20
Available. Released 2021, January 19
Dimensions
C100i
166.5 x 78.2 x 8.4 mm (6.56 x 3.08 x 0.33 in)
C20
165.2 x 76.4 x 8.9 mm (6.50 x 3.01 x 0.35 in)
Weight
C100i
208 g (7.34 oz)
C20
190 g (6.70 oz)
Build
C100i
Glass front, plastic frame, plastic back
C20
Glass front (Gorilla Glass 3), plastic frame, plastic back
SIM
C100i
Nano-SIM + Nano-SIM
C20
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
C20
Splash-resistant design
Type
C100i
IPS LCD, 120Hz
C20
IPS LCD, 400 nits (typ)
Size
C100i
6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio)
C20
6.5 inches, 102.0 cm2 (~80.8% screen-to-body ratio)
Resolution
C100i
720 x 1570 pixels, 19.5:9 ratio (~254 ppi density)
C20
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Protection
C100i
Panda MN228 or Corning Gorilla Glass
C20
Corning Gorilla Glass 3
OS
C100i
Android 16
C20
Android 10, Realme UI
Chipset
C100i
Unisoc T7250 (12 nm)
C20
Mediatek MT6765G Helio G35 (12 nm)
CPU
C100i
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
C20
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU
C100i
Mali-G57 MP1
C20
PowerVR GE8320
Card slot
C100i
microSDXC
C20
microSDXC (dedicated slot)
Internal
C100i
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
C20
32GB 2GB RAM
Other
C100i
eMMC 5.1
C20
eMMC 5.1
Single
C100i
8 MP, f/2.0, (wide), AF
C20
8 MP, f/2.0, (wide), 1/4.0", 1.12µm, AF
Features
C100i
LED flash, HDR, panorama
C20
LED flash, HDR, panorama
Video
C100i
1080p@30fps
C20
1080p@30fps
Single
C100i
5 MP, f/2.2, (wide)
C20
5 MP, f/2.2, (wide), 1/5.0", 1.12µm
Video
C100i
720p@30fps
C20
1080p@30fps
Features
C100i
-
C20
HDR
Loudspeaker
C100i
Yes
C20
Yes
3.5mm jack
C100i
Yes
C20
Yes
WLAN
C100i
Wi-Fi 802.11 a/b/g/n/ac, dual-band
C20
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
C100i
5.2, A2DP, LE
C20
5.1, A2DP, LE
Positioning
C100i
GPS, GALILEO, GLONASS, BDS
C20
GPS, GLONASS, BDS
NFC
C100i
No
C20
No
Radio
C100i
Unspecified
C20
FM radio
USB
C100i
USB Type-C 2.0, OTG
C20
microUSB 2.0, OTG
Sensors
C100i
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
C20
Accelerometer, proximity, compass
Type
C100i
Si/C Li-Ion 7000 mAh
C20
5000 mAh
Charging
C100i
15W wired, PD, QC Reverse wired
C20
10W wired Reverse wired
Colors
C100i
Dawn Purple, Dusk Gray
C20
Cool Gray, Cool Blue
Models
C100i
RMX5377
C20
RMX3063, RMX3061
Price
C100i
About 110 EUR
C20
About 90 EUR
SAR
C100i
-
C20
0.98 W/kg (head) 0.50 W/kg (body)