Screen size
C156.6"
Cool 20sWinner: 6.6"+0.3%
Quick verdict
Cool 20s leads the measured specs 11-3.
Measured wins
C15
3
spec wins
Ties
7
equal specs
Cool 20s
11
spec wins
Overall winner
Screen size
Technology
C15
GSM / HSPA / LTE
Cool 20s
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
C15
GSM 850 / 900 / 1800 / 1900
Cool 20s
GSM 850 / 900 / 1800 / 1900 , CDMA 800
3G bands
C15
HSDPA 850 / 900 / 1900 / 2100 - International, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA
Cool 20s
HSDPA 850 / 900 / 1900 / 2100 , CDMA2000 1xEV-DO
4G bands
C15
1, 3, 5, 7, 8, 20, 28, 34, 38, 39, 40, 41 - International, 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 25, 26, 28, 66 - USA
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
equal specsRAM
Storage
equal specsMain camera
equal specsFront camera
equal specsBattery
Wired charging
equal specsWeight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
3.5mm jack
SD card
equal specsStereo speakers
Cool 20s
1, 3, 5, 8, 34, 39, 40, 41
Speed
C15
HSPA, LTE
Cool 20s
HSPA, LTE, 5G
5G bands
C15
-
Cool 20s
1, 28, 41, 77, 78 SA/NSA
Announced
C15
2024, May
Cool 20s
2022, June 14
Status
C15
Available. Released 2024, May
Cool 20s
Available. Released 2022, June 14
Dimensions
C15
164.2 x 75.7 x 8.8 mm (6.46 x 2.98 x 0.35 in)
Cool 20s
163 x 74.8 x 8.3 mm (6.42 x 2.94 x 0.33 in)
Weight
C15
196 g (6.91 oz)
Cool 20s
180 g (6.35 oz)
SIM
C15
Nano-SIM + Nano-SIM
Cool 20s
Nano-SIM + Nano-SIM
Type
C15
IPS LCD, 90Hz, 400 nits
Cool 20s
IPS LCD, 90Hz
Size
C15
6.56 inches, 103.4 cm2 (~83.2% screen-to-body ratio)
Cool 20s
6.58 inches, 104.3 cm2 (~85.5% screen-to-body ratio)
Resolution
C15
720 x 1612 pixels, 20:9 ratio (~269 ppi density)
Cool 20s
1080 x 2408 pixels, 20:9 ratio (~401 ppi density)
OS
C15
Android 14
Cool 20s
Android 13, CoolOS
Chipset
C15
Mediatek Helio G36 (12 nm)
Cool 20s
Mediatek Dimensity 700 (7 nm)
CPU
C15
Octa-core (4x2.2 GHz Cortex-A53 & 4x1.6 GHz Cortex-A53)
Cool 20s
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
C15
PowerVR GE8320
Cool 20s
Mali-G57 MC2
Card slot
C15
microSDXC
Cool 20s
microSDXC
Internal
C15
128GB 4GB RAM, 256GB 6GB RAM
Cool 20s
128GB 6GB RAM, 256GB 8GB RAM
Other
C15
eMMC 5.1
Cool 20s
-
Dual
C15
50 MP, f/1.8, (wide), AF 2 MP (macro)
Cool 20s
50 MP, f/1.8 (wide), PDAF 2 MP (macro)
Features
C15
LED flash
Cool 20s
LED flash, panorama, HDR
Video
C15
Yes
Cool 20s
1080p@30fps
Single
C15
8 MP, f/2.0
Cool 20s
8 MP
Video
C15
Yes
Cool 20s
1080p@30fps
Features
C15
-
Cool 20s
HDR
Loudspeaker
C15
Yes
Cool 20s
Yes, with stereo speakers
3.5mm jack
C15
No
Cool 20s
Yes
WLAN
C15
Wi-Fi 802.11 a/b/g/n/ac
Cool 20s
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
C15
5.0, A2DP, LE
Cool 20s
5.1, A2DP, LE
Positioning
C15
GPS, GALILEO, GLONASS, BDS
Cool 20s
GPS, GLONASS, BDS, GALILEO, QZSS
NFC
C15
Yes
Cool 20s
No
Radio
C15
Unspecified
Cool 20s
FM radio
USB
C15
Yes
Cool 20s
USB Type-C 2.0, OTG
Sensors
C15
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Cool 20s
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
C15
5000 mAh
Cool 20s
Li-Po 4500 mAh
Charging
C15
18W wired
Cool 20s
18W wired
Colors
C15
Dreamy Blue, Ripple Purple, Midnight Black
Cool 20s
Black, Blue, White
Price
C15
-
Cool 20s
About 140 EUR