Screen size
C206.5"
C83Winner: 6.8"+4.4%
Quick verdict
C83 leads the measured specs 14-4.
Measured wins
C20
4
spec wins
Ties
5
equal specs
C83
14
spec wins
Overall winner
Screen size
Technology
C20
GSM / HSPA / LTE
C83
GSM / HSPA / LTE / 5G
2G bands
C20
GSM 850 / 900 / 1800 / 1900
C83
GSM 850 / 900 / 1800 / 1900
3G bands
C20
HSDPA 850 / 900 / 2100
C83
HSDPA 850 / 900 / 2100
4G bands
C20
1, 3, 5, 8, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
NFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
C83
1, 3, 5, 8, 28, 40, 41
Speed
C20
HSPA, LTE
C83
HSPA, LTE, 5G
5G bands
C20
-
C83
1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
Announced
C20
2021, January 19
C83
2026, March 06
Status
C20
Available. Released 2021, January 19
C83
Available. Released 2026, March 07
Dimensions
C20
165.2 x 76.4 x 8.9 mm (6.50 x 3.01 x 0.35 in)
C83
166.3 x 78.1 x 8.4 mm (6.55 x 3.07 x 0.33 in)
Weight
C20
190 g (6.70 oz)
C83
212 g (7.48 oz)
Build
C20
Glass front (Gorilla Glass 3), plastic frame, plastic back
C83
Glass front, plastic frame, plastic back
SIM
C20
Nano-SIM + Nano-SIM
C83
Nano-SIM + Nano-SIM
Other
C20
Splash-resistant design
C83
IP64 dust tight and water resistant (water splashes) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Type
C20
IPS LCD, 400 nits (typ)
C83
IPS LCD, 144Hz, 900 nits (peak)
Size
C20
6.5 inches, 102.0 cm2 (~80.8% screen-to-body ratio)
C83
6.8 inches, 113.0 cm2 (~87.0% screen-to-body ratio)
Resolution
C20
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
C83
720 x 1570 pixels, 19.5:9 ratio (~254 ppi density)
Protection
C20
Corning Gorilla Glass 3
C83
-
OS
C20
Android 10, Realme UI
C83
Android 16, Realme UI 7.0
Chipset
C20
Mediatek MT6765G Helio G35 (12 nm)
C83
Mediatek Dimensity 6300 (6 nm)
CPU
C20
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
C83
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
C20
PowerVR GE8320
C83
Mali-G57 MC2
Card slot
C20
microSDXC (dedicated slot)
C83
microSDXC (uses shared SIM slot)
Internal
C20
32GB 2GB RAM
C83
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
Other
C20
eMMC 5.1
C83
eMMC 5.1
Single
C20
8 MP, f/2.0, (wide), 1/4.0", 1.12µm, AF
C83
13 MP, f/2.2, (wide)
Features
C20
LED flash, HDR, panorama
C83
LED flash, HDR, panorama
Video
C20
1080p@30fps
C83
1080p@30fps
Single
C20
5 MP, f/2.2, (wide), 1/5.0", 1.12µm
C83
5 MP, f/2.2, (wide)
Features
C20
HDR
C83
-
Video
C20
1080p@30fps
C83
1080p@30fps
Loudspeaker
C20
Yes
C83
Yes, with stereo speakers
3.5mm jack
C20
Yes
C83
Yes
Other
C20
-
C83
24-bit/192kHz Hi-Res audio
WLAN
C20
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
C83
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
C20
5.1, A2DP, LE
C83
5.3, A2DP, LE
Positioning
C20
GPS, GLONASS, BDS
C83
GPS, GALILEO, GLONASS, QZSS, BDS
NFC
C20
No
C83
No
Radio
C20
FM radio
C83
No
USB
C20
microUSB 2.0, OTG
C83
USB Type-C 2.0, OTG
Sensors
C20
Accelerometer, proximity, compass
C83
Accelerometer, gyro, proximity, compass
Type
C20
5000 mAh
C83
Si/C Li-Ion 7000 mAh
Charging
C20
10W wired Reverse wired
C83
15W wired Reverse wired Bypass charging
Colors
C20
Cool Gray, Cool Blue
C83
Blooming Purple, Sprouting Green
Models
C20
RMX3063, RMX3061
C83
-
SAR
C20
0.98 W/kg (head) 0.50 W/kg (body)
C83
-
Price
C20
About 90 EUR
C83
About 130 EUR