Screen size
C516.8"
C61Winner: 6.9"+1.2%
Quick verdict
C61 leads the measured specs 6-5.
Measured wins
C51
5
spec wins
Ties
9
equal specs
C61
6
spec wins
Overall winner
Screen size
Technology
C51
GSM / HSPA / LTE
C61
GSM / HSPA / LTE
2G bands
C51
GSM 850 / 900 / 1800 / 1900
C61
GSM 850 / 900 / 1800 / 1900
3G bands
C51
HSDPA 900 / 2100
C61
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
C51
1, 3, 5, 7, 8, 19, 20, 38, 40, 41
Resolution
Refresh rate
Peak brightness
equal specsPixel density
CPU speed
RAM
Storage
equal specsMain camera
equal specsFront camera
equal specsBattery
equal specsWired charging
equal specsWeight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
C61
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
Speed
C51
HSPA, LTE
C61
HSPA, LTE
Announced
C51
2024, May
C61
2025, March
Status
C51
Available. Released 2024, June
C61
Available. Released 2025, May
Dimensions
C51
168.1 x 78.2 x 9.4 mm (6.62 x 3.08 x 0.37 in)
C61
170.7 x 79.6 x 9.5 mm (6.72 x 3.13 x 0.37 in)
Weight
C51
205 g (7.23 oz)
C61
216 g (7.62 oz)
SIM
C51
Nano-SIM
C61
Nano-SIM + Nano-SIM
Other
C51
Drop resistant up to 0.8m
C61
-
Type
C51
IPS LCD, 450 nits
C61
IPS LCD, 90Hz, 450 nits
Size
C51
6.8 inches, 111.6 cm2 (~84.9% screen-to-body ratio)
C61
6.88 inches, 112.4 cm2 (~82.7% screen-to-body ratio)
Resolution
C51
720 x 1600 pixels, 20:9 ratio (~258 ppi density)
C61
720 x 1640 pixels (~260 ppi density)
Protection
C51
Corning Gorilla Glass 5
C61
Corning Gorilla Glass, Mohs level 5
OS
C51
Android 13
C61
Android 15
Chipset
C51
Unisoc T606 (12 nm)
C61
Unisoc T615 (12 nm)
CPU
C51
Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
C61
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
C51
Mali-G57 MP1
C61
Mali-G57 MP1
Card slot
C51
microSDXC (dedicated slot)
C61
microSDXC (uses shared SIM slot)
Internal
C51
128GB 6GB RAM
C61
128GB 4GB RAM
Other
C51
UFS
C61
-
Single
C51
13 MP, f/2.2, (wide), 1/3.06", AF
C61
13 MP, f/2.2, (wide), 1/3.06", AF
Features
C51
LED flash, panorama
C61
LED flash, HDR, panorama
Video
C51
1080p@30fps
C61
1080p@30fps
Single
C51
5 MP, f/2.2, (wide), 1/5"
C61
5 MP, f/2.2, (wide), 1/5.0"
Video
C51
Yes
C61
720p@30fps
Loudspeaker
C51
Yes
C61
Yes
3.5mm jack
C51
Yes
C61
No
WLAN
C51
Wi-Fi 802.11 a/b/g/n/ac, dual-band
C61
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
C51
5.0, A2DP, LE
C61
5.0, A2DP, LE
Positioning
C51
GPS, GALILEO, GLONASS, BDS
C61
GPS, GALILEO, GLONASS, BDS
NFC
C51
No
C61
Yes
Radio
C51
FM radio
C61
FM radio
USB
C51
USB Type-C 2.0, OTG
C61
USB Type-C
Sensors
C51
Fingerprint (side-mounted), accelerometer, proximity
C61
Fingerprint (side-mounted), accelerometer, compass
Type
C51
Li-Po 5150 mAh
C61
Li-Po 5150 mAh
Charging
C51
10W wired
C61
10W wired
Colors
C51
Gray, Blue, Purple
C61
Gold, Purple, Blue, Black
Price
C51
-
C61
$ 114.99 / £ 81.99