Screen size
Quick verdict
8i and C100x are close on the measured specs.
Measured wins
8i
7
spec wins
Ties
8
equal specs
C100x
7
spec wins
Screen size
Technology
8i
GSM / HSPA / LTE
C100x
GSM / HSPA / LTE
2G bands
8i
GSM 850 / 900 / 1800 / 1900
C100x
GSM 850 / 900 / 1800 / 1900
3G bands
8i
HSDPA 850 / 900 / 2100
C100x
HSDPA 900 / 2100
4G bands
8i
1, 3, 5, 8, 38, 40, 41
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
equal specsStorage
Main camera
equal specsFront camera
Battery
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
C100x
1, 3, 5, 8, 40
Speed
8i
HSPA, LTE
C100x
HSPA, LTE
Announced
8i
2021, September 09
C100x
2026, May 07
Status
8i
Available. Released 2021, September 14
C100x
Released May 15, 2026
Dimensions
8i
164.1 x 75.5 x 8.5 mm (6.46 x 2.97 x 0.33 in)
C100x
166.5 x 78.2 x 8.6 mm (6.56 x 3.08 x 0.34 in)
Weight
8i
194 g (6.84 oz)
C100x
219 g (7.72 oz)
Build
8i
Glass front, plastic frame, plastic back
C100x
Glass front, plastic frame, plastic back
SIM
8i
Nano-SIM + Nano-SIM
C100x
Nano-SIM + Nano-SIM
Other
8i
-
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.)
Type
8i
IPS LCD, 120Hz, 600 nits (peak)
C100x
IPS LCD, 120Hz, 900 nits (HBM)
Size
8i
6.6 inches, 104.8 cm2 (~84.6% screen-to-body ratio)
C100x
6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio)
Resolution
8i
1080 x 2412 pixels, 20:9 ratio (~400 ppi density)
C100x
720 x 1570 pixels, 19.5:9 ratio (~254 ppi density)
Protection
8i
-
C100x
ArmorShell glass, Mohs level 5
OS
8i
Android 11, Realme UI 2.0
C100x
Android 16
Chipset
8i
Mediatek MT6781 Helio G96 (12 nm)
C100x
Unisoc T7250 (12 nm)
CPU
8i
Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
C100x
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
8i
Mali-G57 MC2
C100x
Mali-G57 MP1
Card slot
8i
microSDXC (dedicated slot)
C100x
microSDXC
Internal
8i
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
C100x
128GB 4GB RAM, 128GB 6GB RAM, 256GB 4GB RAM, 256GB 6GB RAM
Other
8i
UFS 2.1
C100x
eMMC 5.1
Triple
8i
50 MP, f/1.8, 26mm (wide), 1/2.76", 0.64µm, PDAF 2 MP (macro) Auxiliary lens
C100x
-
Features
8i
LED flash, HDR, panorama
C100x
LED flash, HDR, panorama
Video
8i
1080p@30fps
C100x
1080p@30fps
Dual
8i
-
C100x
50 MP, f/1.8, (wide), PDAF Auxiliary lens
Single
8i
16 MP, f/2.1, (wide), 1/3.0", 1.0µm
C100x
5 MP, f/2.2, (wide)
Features
8i
Panorama
C100x
-
Video
8i
1080p@30fps
C100x
720p@30fps
Loudspeaker
8i
Yes
C100x
Yes
3.5mm jack
8i
Yes
C100x
Yes
WLAN
8i
Wi-Fi 802.11 a/b/g/n/ac, dual-band
C100x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
8i
5.1, A2DP, LE
C100x
5.2, A2DP, LE
Positioning
8i
GPS, GLONASS, GALILEO, BDS
C100x
GPS, GALILEO, GLONASS, BDS
NFC
8i
Yes (market/region dependent)
C100x
Yes (market/region dependent)
Radio
8i
No
C100x
Unspecified
USB
8i
USB Type-C 2.0, OTG
C100x
USB Type-C 2.0, OTG
Sensors
8i
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
C100x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
8i
5000 mAh
C100x
Si/C Li-Ion 8000 mAh
Charging
8i
18W wired
C100x
45W wired, 45W PPS, 13.5W PD Reverse wired
Colors
8i
Space Black, Space Purple
C100x
Golden Coast, Deepblue Tides
Models
8i
RMX3151
C100x
RMX5366
Price
8i
About 440 EUR
C100x
About 160 EUR