Screen size
BT202.0"
C61Winner: 6.9"+72%
Quick verdict
C61 leads the measured specs 15-3.
Measured wins
BT20
3
spec wins
Ties
2
equal specs
C61
15
spec wins
Overall winner
Screen size
Technology
BT20
No cellular connectivity
C61
GSM / HSPA / LTE
2G bands
BT20
N/A
C61
GSM 850 / 900 / 1800 / 1900
3G bands
BT20
N/A
C61
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
BT20
N/A
C61
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
Speed
BT20
No
C61
HSPA, LTE
GPRS
BT20
No
C61
-
EDGE
BT20
No
C61
-
Announced
BT20
2023, August
C61
2025, March
Status
BT20
Available. Released 2023, August
C61
Available. Released 2025, May
Dimensions
BT20
-
C61
170.7 x 79.6 x 9.5 mm (6.72 x 3.13 x 0.37 in)
Weight
BT20
-
C61
216 g (7.62 oz)
SIM
BT20
No
C61
Nano-SIM + Nano-SIM
Other
BT20
Waterproof (5ATM) IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 50m) MIL-STD-810H compliant
C61
-
Type
BT20
AMOLED
C61
IPS LCD, 90Hz, 450 nits
Size
BT20
1.96 inches
C61
6.88 inches, 112.4 cm2 (~82.7% screen-to-body ratio)
Resolution
BT20
410 x 502 pixels (~331 ppi density)
C61
720 x 1640 pixels (~260 ppi density)
Protection
BT20
-
C61
Corning Gorilla Glass, Mohs level 5
OS
BT20
Proprietary OS
C61
Android 15
Chipset
BT20
-
C61
Unisoc T615 (12 nm)
CPU
BT20
-
C61
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
BT20
-
C61
Mali-G57 MP1
Card slot
BT20
No
C61
microSDXC (uses shared SIM slot)
Internal
BT20
-
C61
128GB 4GB RAM
Other
BT20
No
C61
-
Loudspeaker
BT20
Yes
C61
Yes
3.5mm jack
BT20
No
C61
No
WLAN
BT20
No
C61
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
BT20
5.2, A2DP, LE
C61
5.0, A2DP, LE
Positioning
BT20
No
C61
GPS, GALILEO, GLONASS, BDS
NFC
BT20
No
C61
Yes
Radio
BT20
No
C61
FM radio
USB
BT20
No
C61
USB Type-C
Sensors
BT20
Accelerometer, heart rate, SpO2
C61
Fingerprint (side-mounted), accelerometer, compass
Type
BT20
Li-Ion 350 mAh
C61
Li-Po 5150 mAh
Charging
BT20
-
C61
10W wired
Colors
BT20
Black
C61
Gold, Purple, Blue, Black
Price
BT20
About 80 EUR
C61
$ 114.99 / £ 81.99
Single
BT20
-
C61
13 MP, f/2.2, (wide), 1/3.06", AF
Features
BT20
-
C61
LED flash, HDR, panorama
Video
BT20
-
C61
1080p@30fps
Single
BT20
-
C61
5 MP, f/2.2, (wide), 1/5.0"
Video
BT20
-
C61
720p@30fps