Screen size
A1Winner: 6.6"+39%
J204.0"
Quick verdict
A1 leads the measured specs 11-1.
Measured wins
A1
11
spec wins
Overall winner
Ties
5
equal specs
J20
1
spec wins
Screen size
Technology
A1
GSM / HSPA / LTE
J20
GSM / HSPA / LTE
2G bands
A1
GSM 850 / 900 / 1800 / 1900
J20
GSM 850 / 900 / 1800 / 1900
3G bands
A1
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
J20
HSDPA 900 / 2100
4G bands
A1
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 41
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
equal specsUSB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
J20
1, 3, 5, 7, 8, 19, 20, 40
Speed
A1
HSPA, LTE
J20
HSPA, LTE
Announced
A1
2024, March
J20
2022
Status
A1
Available. Released 2024, April
J20
Available. Released 2022
Dimensions
A1
165.6 x 75.5 x 10.4 mm (6.52 x 2.97 x 0.41 in)
J20
126.3 x 60.6 x 12.7 mm (4.97 x 2.39 x 0.5 in)
Weight
A1
205 g (7.23 oz)
J20
143 g (5.04 oz)
SIM
A1
Nano-SIM + Nano-SIM
J20
Nano-SIM + Nano-SIM
Type
A1
IPS LCD
J20
TN TFT
Size
A1
6.56 inches, 103.4 cm2 (~82.7% screen-to-body ratio)
J20
4.0 inches, 44.1 cm2 (~57.6% screen-to-body ratio)
Resolution
A1
720 x 1612 pixels, 20:9 ratio (~269 ppi density)
J20
480 x 854 pixels, 16:9 ratio (~245 ppi density)
OS
A1
Android 13
J20
Android 12 (Go edition)
Chipset
A1
Unisoc SC9863A (28 nm)
J20
Mediatek MT6739WA (28 nm)
CPU
A1
Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
J20
Quad-core 1.3 GHz Cortex-A53
GPU
A1
IMG8322
J20
PowerVR GE8100
Card slot
A1
microSDXC (uses shared SIM slot)
J20
microSDXC (dedicated slot)
Internal
A1
128GB 4GB RAM
J20
16GB 2GB RAM
Single
A1
13 MP, (wide), AF Auxiliary lens
J20
5 MP, (wide), AF
Features
A1
LED flash
J20
LED flash
Video
A1
Yes
J20
Yes
Single
A1
8 MP
J20
2 MP
Video
A1
Yes
J20
Yes
Loudspeaker
A1
Yes
J20
Yes
3.5mm jack
A1
Unspecified
J20
Unspecified
WLAN
A1
Wi-Fi 802.11 a/b/g/n/ac
J20
Wi-Fi 802.11 b/g/n
Bluetooth
A1
4.2, A2DP
J20
4.2, A2DP
Positioning
A1
GPS, GLONASS, GALILEO
J20
GPS, GLONASS, GALILEO
NFC
A1
No
J20
No
Radio
A1
Unspecified
J20
Unspecified
USB
A1
OTG
J20
Yes
Sensors
A1
Accelerometer, proximity
J20
Accelerometer
Type
A1
5100 mAh
J20
2350 mAh, removable
Charging
A1
10W wired
J20
-
Colors
A1
Black, Blue, Green
J20
Blue, Black, Green
Price
A1
About 80 EUR
J20
-