Screen size
A40Winner: 6.9"+9.9%
J96.2"
Quick verdict
A40 leads the measured specs 14-3.
Measured wins
A40
14
spec wins
Overall winner
Ties
1
equal specs
J9
3
spec wins
Screen size
Technology
A40
GSM / HSPA / LTE
J9
GSM / HSPA
2G bands
A40
GSM 850 / 900 / 1800 / 1900
J9
GSM 850 / 900 / 1800 / 1900
3G bands
A40
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
J9
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
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
SD card
Stereo speakers
J9
-
Speed
A40
HSPA, LTE
J9
HSPA
Announced
A40
2025, July
J9
2020. Released 2020
Status
A40
Available. Released 2025, July
J9
Discontinued
Dimensions
A40
172.3 x 78.1 x 8.8 mm (6.78 x 3.07 x 0.35 in)
J9
156.2 x 74.6 x 9.4 mm (6.15 x 2.94 x 0.37 in)
Weight
A40
-
J9
185 g (6.53 oz)
SIM
A40
Nano-SIM + Nano-SIM
J9
Nano-SIM + Nano-SIM
Type
A40
IPS LCD, 120Hz
J9
IPS LCD
Size
A40
6.88 inches, 112.4 cm2 (~83.5% screen-to-body ratio)
J9
6.2 inches, 95.9 cm2 (~82.3% screen-to-body ratio)
Resolution
A40
720 x 1640 pixels (~260 ppi density)
J9
720 x 1520 pixels, 19:9 ratio (~271 ppi density)
Protection
A40
Mohs level 6
J9
-
OS
A40
Android 15
J9
Android 10
Chipset
A40
Unisoc T606 (12 nm)
J9
Mediatek MT6580 (28 nm)
CPU
A40
Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
J9
Quad-core 1.3 GHz
GPU
A40
Mali-G57 MP1
J9
-
Card slot
A40
microSDXC
J9
No
Internal
A40
64GB 4GB RAM, 256GB 8GB RAM
J9
16GB 2GB RAM
Dual
A40
48 MP, (wide), PDAF 2 MP, (ultrawide)
J9
-
Features
A40
LED flash
J9
LED flash
Video
A40
Yes
J9
Yes
Triple
A40
-
J9
13 MP, (wide), AF 2 MP 0.3 MP
Single
A40
16 MP
J9
8 MP
Video
A40
Yes
J9
Yes
Loudspeaker
A40
Yes, with stereo speakers
J9
Yes
3.5mm jack
A40
No
J9
Yes
WLAN
A40
Wi-Fi 802.11 a/b/g/n/ac, dual-band
J9
Wi-Fi 802.11 b/g/n
Bluetooth
A40
5.0, A2DP, LE
J9
4.0, A2DP
Positioning
A40
GPS, GALILEO, GLONASS, BDS
J9
GPS
NFC
A40
Yes
J9
No
Radio
A40
Unspecified
J9
Unspecified
USB
A40
USB Type-C, OTG
J9
USB Type-C
Sensors
A40
Accelerometer, proximity
J9
Accelerometer, proximity
Type
A40
5100 mAh
J9
4200 mAh, removable
Colors
A40
Black, Purple, Titan Grey
J9
Blue, Black, Green