Screen size
A31 (2015)4.5"
A6 4GWinner: 6.8"+33%
Quick verdict
A6 4G leads the measured specs 16-3.
Measured wins
A31 (2015)
3
spec wins
Ties
3
equal specs
A6 4G
16
spec wins
Overall winner
Screen size
Technology
A31 (2015)
GSM / LTE
A6 4G
GSM / HSPA / LTE
2G bands
A31 (2015)
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
A6 4G
GSM 850 / 900 / 1800 / 1900
3G bands
A31 (2015)
TD-SCDMA
A6 4G
HSDPA 850 / 900 / 2100 - version 1, HSDPA 900 / 2100 - version 2
4G bands
A31 (2015)
38, 39, 40, 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
USB
equal specs5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
A6 4G
1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - version 1, 1, 3, 5, 8, 40 - version 2
Speed
A31 (2015)
TD-SCDMA, LTE Cat4 150/50 Mbps
A6 4G
HSPA, LTE
GPRS
A31 (2015)
Yes
A6 4G
-
EDGE
A31 (2015)
Yes
A6 4G
-
Announced
A31 (2015)
2015, April. Released 2015, April 17
A6 4G
2026, January 13
Status
A31 (2015)
Discontinued
A6 4G
Available. Released 2026, January 13
Dimensions
A31 (2015)
131.9 x 65.5 x 8 mm (5.19 x 2.58 x 0.31 in)
A6 4G
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Weight
A31 (2015)
135 g (4.76 oz)
A6 4G
215 g (7.58 oz)
SIM
A31 (2015)
Nano-SIM + Micro-SIM
A6 4G
Nano-SIM + Nano-SIM
Build
A31 (2015)
-
A6 4G
Glass front, plastic frame, plastic back
Other
A31 (2015)
-
A6 4G
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
Type
A31 (2015)
IPS LCD
A6 4G
IPS LCD, 120Hz, 1125 nits (peak)
Size
A31 (2015)
4.5 inches, 55.8 cm2 (~64.6% screen-to-body ratio)
A6 4G
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Resolution
A31 (2015)
480 x 854 pixels, 16:9 ratio (~218 ppi density)
A6 4G
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
OS
A31 (2015)
Android 4.4 (KitKat)
A6 4G
Android 15, ColorOS 15
Chipset
A31 (2015)
Qualcomm MSM8916 Snapdragon 410 (28 nm)
A6 4G
Qualcomm SM6225 Snapdragon 685 (6 nm)
CPU
A31 (2015)
Quad-core 1.2 GHz Cortex-A53
A6 4G
Octa-core (4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53)
GPU
A31 (2015)
Adreno 306
A6 4G
Adreno 610
Card slot
A31 (2015)
microSDXC (dedicated slot)
A6 4G
microSDXC
Internal
A31 (2015)
8GB 1GB RAM
A6 4G
128GB 6GB RAM, 128GB 8GB RAM, 256GB 4GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Other
A31 (2015)
eMMC 4.5
A6 4G
UFS 2.2
Single
A31 (2015)
8 MP, AF
A6 4G
-
Features
A31 (2015)
LED flash
A6 4G
LED flash, HDR, panorama
Video
A31 (2015)
1080p@30fps
A6 4G
1080p@30fps
Dual
A31 (2015)
-
A6 4G
50 MP, f/1.8, (wide), PDAF Auxiliary lens
Single
A31 (2015)
5 MP
A6 4G
8 MP, f/2.0, (wide)
Video
A31 (2015)
A6 4G
1080p@30fps
Features
A31 (2015)
-
A6 4G
Panorama
Loudspeaker
A31 (2015)
Yes
A6 4G
Yes, with stereo speakers
3.5mm jack
A31 (2015)
Yes
A6 4G
No
WLAN
A31 (2015)
Wi-Fi 802.11 b/g/n
A6 4G
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
A31 (2015)
4.0, A2DP
A6 4G
5.0, A2DP, LE, aptX
Positioning
A31 (2015)
GPS
A6 4G
GPS, GALILEO, GLONASS, QZSS
NFC
A31 (2015)
No
A6 4G
Yes (market/region dependent)
Radio
A31 (2015)
No
A6 4G
Unspecified
USB
A31 (2015)
microUSB 2.0
A6 4G
USB Type-C 2.0, OTG
Sensors
A31 (2015)
Accelerometer, proximity
A6 4G
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
A31 (2015)
Li-Ion 2000 mAh, non-removable
A6 4G
Si/C Li-Ion 7000 mAh
Stand-by
A31 (2015)
Up to 240 h
A6 4G
-
Talk time
A31 (2015)
Up to 7 h
A6 4G
-
Charging
A31 (2015)
-
A6 4G
45W wired, 33W PPS, 13.5W PD, 36% in 30 min 5W reverse wired
Colors
A31 (2015)
White, Blue
A6 4G
Sapphire Blue, Aurora Gold
Price
A31 (2015)
About 150 EUR
A6 4G
-
Models
A31 (2015)
-
A6 4G
CPH2817