Screen size
A6 4GWinner: 6.8"+13%
U35.9"
Quick verdict
A6 4G leads the measured specs 13-5.
Measured wins
A6 4G
13
spec wins
Overall winner
Ties
4
equal specs
U3
5
spec wins
Screen size
Technology
A6 4G
GSM / HSPA / LTE
U3
GSM / LTE
2G bands
A6 4G
GSM 850 / 900 / 1800 / 1900
U3
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
A6 4G
HSDPA 850 / 900 / 2100 - version 1, HSDPA 900 / 2100 - version 2
U3
TD-SCDMA
4G bands
A6 4G
1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - version 1, 1, 3, 5, 8, 40 - version 2
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
equal specs3.5mm jack
SD card
equal specsStereo speakers
U3
38, 39, 40, 41
Speed
A6 4G
HSPA, LTE
U3
HSPA, LTE
GPRS
A6 4G
-
U3
Yes
EDGE
A6 4G
-
U3
Yes
Announced
A6 4G
2026, January 13
U3
2015, January. Released 2015, April
Status
A6 4G
Available. Released 2026, January 13
U3
Discontinued
Dimensions
A6 4G
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
U3
156.8 x 81 x 8 mm (6.17 x 3.19 x 0.31 in)
Weight
A6 4G
215 g (7.58 oz)
U3
195 g (6.88 oz)
Build
A6 4G
Glass front, plastic frame, plastic back
U3
-
SIM
A6 4G
Nano-SIM + Nano-SIM
U3
Nano-SIM + Micro-SIM
Other
A6 4G
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
U3
-
Type
A6 4G
IPS LCD, 120Hz, 1125 nits (peak)
U3
IPS LCD
Size
A6 4G
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
U3
5.9 inches, 93.9 cm2 (~74.0% screen-to-body ratio)
Resolution
A6 4G
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
U3
1080 x 1920 pixels, 16:9 ratio (~377 ppi density)
OS
A6 4G
Android 15, ColorOS 15
U3
Android 4.4.4 (KitKat), ColorOS 2
Chipset
A6 4G
Qualcomm SM6225 Snapdragon 685 (6 nm)
U3
Mediatek MT6752 (28 nm)
CPU
A6 4G
Octa-core (4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53)
U3
Octa-core 1.7 GHz Cortex-A53
GPU
A6 4G
Adreno 610
U3
Mali-T760MP2
Card slot
A6 4G
microSDXC
U3
microSDHC (dedicated slot)
Internal
A6 4G
128GB 6GB RAM, 128GB 8GB RAM, 256GB 4GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
U3
16GB 2GB RAM
Other
A6 4G
UFS 2.2
U3
-
Dual
A6 4G
50 MP, f/1.8, (wide), PDAF Auxiliary lens
U3
-
Features
A6 4G
LED flash, HDR, panorama
U3
LED flash, HDR, panorama
Video
A6 4G
1080p@30fps
U3
1080p@30fps
Single
A6 4G
-
U3
13 MP, AF
Single
A6 4G
8 MP, f/2.0, (wide)
U3
5 MP
Features
A6 4G
Panorama
U3
LED flash
Video
A6 4G
1080p@30fps
U3
1080p@30fps
Loudspeaker
A6 4G
Yes, with stereo speakers
U3
Yes
3.5mm jack
A6 4G
No
U3
Yes
WLAN
A6 4G
Wi-Fi 802.11 a/b/g/n/ac, dual-band
U3
Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
Bluetooth
A6 4G
5.0, A2DP, LE, aptX
U3
4.0, A2DP
Positioning
A6 4G
GPS, GALILEO, GLONASS, QZSS
U3
GPS
NFC
A6 4G
Yes (market/region dependent)
U3
Yes
Radio
A6 4G
Unspecified
U3
No
USB
A6 4G
USB Type-C 2.0, OTG
U3
microUSB 2.0
Sensors
A6 4G
Fingerprint (side-mounted), accelerometer, proximity, compass
U3
Accelerometer, proximity, compass
Type
A6 4G
Si/C Li-Ion 7000 mAh
U3
Li-Ion 3000 mAh, non-removable
Charging
A6 4G
45W wired, 33W PPS, 13.5W PD, 36% in 30 min 5W reverse wired
U3
20W wired, 75% in 30 min
Stand-by
A6 4G
-
U3
Up to 400 h (3G)
Talk time
A6 4G
-
U3
Up to 10 h (3G)
Colors
A6 4G
Sapphire Blue, Aurora Gold
U3
White, Black
Models
A6 4G
CPH2817
U3
-