Screen size
A40Winner: 6.9"+10%
C206.2"
Quick verdict
A40 leads the measured specs 8-5.
Measured wins
A40
8
spec wins
Overall winner
Ties
5
equal specs
C20
5
spec wins
Screen size
Technology
A40
GSM / HSPA / LTE
C20
GSM / HSPA / LTE
2G bands
A40
GSM 850 / 900 / 1800 / 1900
C20
GSM 850 / 900 / 1800 / 1900
3G bands
A40
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
C20
HSDPA 900 / 2100
4G bands
A40
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 39, 40, 41, 66
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
C20
1, 3, 7, 8, 20
Speed
A40
HSPA, LTE
C20
HSPA, LTE
Announced
A40
2025, July
C20
2020. Released 2020
Status
A40
Available. Released 2025, July
C20
Discontinued
Dimensions
A40
172.3 x 78.1 x 8.8 mm (6.78 x 3.07 x 0.35 in)
C20
155 x 74 x 10 mm (6.10 x 2.91 x 0.39 in)
Weight
A40
-
C20
192.8 g (6.81 oz)
SIM
A40
Nano-SIM + Nano-SIM
C20
Nano-SIM + Nano-SIM
Type
A40
IPS LCD, 120Hz
C20
IPS LCD
Size
A40
6.88 inches, 112.4 cm2 (~83.5% screen-to-body ratio)
C20
6.18 inches, 96.2 cm2 (~83.9% screen-to-body ratio)
Resolution
A40
720 x 1640 pixels (~260 ppi density)
C20
1080 x 2246 pixels, 18.7:9 ratio (~403 ppi density)
Protection
A40
Mohs level 6
C20
-
OS
A40
Android 15
C20
Android 10
Chipset
A40
Unisoc T606 (12 nm)
C20
Mediatek MT6762D Helio P22 (12 nm)
CPU
A40
Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
C20
Octa-core (4x2.0 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53)
GPU
A40
Mali-G57 MP1
C20
PowerVR GE8320
Card slot
A40
microSDXC
C20
microSDXC (dedicated slot)
Internal
A40
64GB 4GB RAM, 256GB 8GB RAM
C20
64GB 4GB RAM
Dual
A40
48 MP, (wide), PDAF 2 MP, (ultrawide)
C20
-
Features
A40
LED flash
C20
LED flash
Video
A40
Yes
C20
Yes
Triple
A40
-
C20
12 MP, (wide), PDAF 5 MP (macro) Auxiliary lens
Single
A40
16 MP
C20
8 MP
Video
A40
Yes
C20
Yes
Loudspeaker
A40
Yes, with stereo speakers
C20
Yes
3.5mm jack
A40
No
C20
Yes
WLAN
A40
Wi-Fi 802.11 a/b/g/n/ac, dual-band
C20
Wi-Fi 802.11 a/b/g/n
Bluetooth
A40
5.0, A2DP, LE
C20
4.2, A2DP
Positioning
A40
GPS, GALILEO, GLONASS, BDS
C20
GPS
NFC
A40
Yes
C20
Yes
Radio
A40
Unspecified
C20
Unspecified
USB
A40
USB Type-C, OTG
C20
USB Type-C, OTG
Sensors
A40
Accelerometer, proximity
C20
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
A40
5100 mAh
C20
4200 mAh, removable
Colors
A40
Black, Purple, Titan Grey
C20
Blue, Black