Screen size
C156.5"
C83Winner: 6.8"+4.4%
Quick verdict
C83 leads the measured specs 12-5.
Measured wins
C15
5
spec wins
Ties
6
equal specs
C83
12
spec wins
Overall winner
Screen size
Technology
C15
GSM / HSPA / LTE
C83
GSM / HSPA / LTE / 5G
2G bands
C15
GSM 850 / 900 / 1800 / 1900
C83
GSM 850 / 900 / 1800 / 1900
3G bands
C15
HSDPA 850 / 900 / 2100
C83
HSDPA 850 / 900 / 2100
4G bands
C15
1, 3, 5, 8, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
NFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
C83
1, 3, 5, 8, 28, 40, 41
Speed
C15
HSPA, LTE
C83
HSPA, LTE, 5G
5G bands
C15
-
C83
1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
Announced
C15
2020, July 28. Released 2020, July 28
C83
2026, March 06
Status
C15
Discontinued
C83
Available. Released 2026, March 07
Dimensions
C15
164.5 x 75.9 x 9.8 mm (6.48 x 2.99 x 0.39 in)
C83
166.3 x 78.1 x 8.4 mm (6.55 x 3.07 x 0.33 in)
Weight
C15
209 g (7.37 oz)
C83
212 g (7.48 oz)
Build
C15
Glass front, plastic frame, plastic back
C83
Glass front, plastic frame, plastic back
SIM
C15
Nano-SIM + Nano-SIM
C83
Nano-SIM + Nano-SIM
Other
C15
-
C83
IP64 dust tight and water resistant (water splashes) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Type
C15
IPS LCD
C83
IPS LCD, 144Hz, 900 nits (peak)
Size
C15
6.5 inches, 102.0 cm2 (~81.7% screen-to-body ratio)
C83
6.8 inches, 113.0 cm2 (~87.0% screen-to-body ratio)
Resolution
C15
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
C83
720 x 1570 pixels, 19.5:9 ratio (~254 ppi density)
Protection
C15
Corning Gorilla Glass
C83
-
OS
C15
Android 10, Realme UI
C83
Android 16, Realme UI 7.0
Chipset
C15
Mediatek MT6765G Helio G35 (12 nm)
C83
Mediatek Dimensity 6300 (6 nm)
CPU
C15
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
C15
PowerVR GE8320
C83
Mali-G57 MC2
Card slot
C15
microSDXC (dedicated slot)
C83
microSDXC (uses shared SIM slot)
Internal
C15
32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM
C83
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
Other
C15
eMMC 5.1
C83
eMMC 5.1
Quad
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
C83
-
Features
C15
LED flash, HDR, panorama
C83
LED flash, HDR, panorama
Video
C15
1080p@30fps
C83
1080p@30fps
Single
C15
-
C83
13 MP, f/2.2, (wide)
Single
C15
8 MP, f/2.0, (wide)
C83
5 MP, f/2.2, (wide)
Features
C15
HDR, panorama
C83
-
Video
C15
1080p@30fps
C83
1080p@30fps
Loudspeaker
C15
Yes
C83
Yes, with stereo speakers
3.5mm jack
C15
Yes
C83
Yes
Other
C15
-
C83
24-bit/192kHz Hi-Res audio
WLAN
C15
Wi-Fi 802.11 b/g/n
C83
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
C15
5.0, A2DP, LE, aptX
C83
5.3, A2DP, LE
Positioning
C15
GPS, GLONASS, BDS
C83
GPS, GALILEO, GLONASS, QZSS, BDS
NFC
C15
No
C83
No
Radio
C15
FM radio
C83
No
USB
C15
microUSB 2.0, OTG
C83
USB Type-C 2.0, OTG
Sensors
C15
Fingerprint (rear-mounted), accelerometer, proximity, compass
C83
Accelerometer, gyro, proximity, compass
Type
C15
6000 mAh
C83
Si/C Li-Ion 7000 mAh
Charging
C15
18W wired
C83
15W wired Reverse wired Bypass charging
Colors
C15
Marine Blue, Seagull Silver
C83
Blooming Purple, Sprouting Green
Models
C15
RMX2180
C83
-
Price
C15
About 160 EUR
C83
About 130 EUR