Screen size
A6 4GWinner: 6.8"+5.2%
R15x6.4"
Quick verdict
A6 4G leads the measured specs 11-6.
Measured wins
A6 4G
11
spec wins
Overall winner
Ties
5
equal specs
R15x
6
spec wins
Screen size
Technology
A6 4G
GSM / HSPA / LTE
R15x
GSM / CDMA / HSPA / LTE
2G bands
A6 4G
GSM 850 / 900 / 1800 / 1900
R15x
GSM 850 / 900 / 1800 / 1900 , CDMA 800 & TD-SCDMA
3G bands
A6 4G
HSDPA 850 / 900 / 2100 - version 1, HSDPA 900 / 2100 - version 2
R15x
HSDPA 850 / 1700(AWS) / 2100 / 900
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
equal specsStorage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
3.5mm jack
SD card
Stereo speakers
R15x
1, 3, 4, 5, 8, 34, 38, 39, 40, 41
Speed
A6 4G
HSPA, LTE
R15x
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
A6 4G
2026, January 13
R15x
2018, October. Released 2018, November
Status
A6 4G
Available. Released 2026, January 13
R15x
Discontinued
Dimensions
A6 4G
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
R15x
158.3 x 75.5 x 7.4 mm (6.23 x 2.97 x 0.29 in)
Weight
A6 4G
215 g (7.58 oz)
R15x
156 g (5.50 oz)
Build
A6 4G
Glass front, plastic frame, plastic back
R15x
-
SIM
A6 4G
Nano-SIM + Nano-SIM
R15x
Nano-SIM + Nano-SIM
Other
A6 4G
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
R15x
-
Type
A6 4G
IPS LCD, 120Hz, 1125 nits (peak)
R15x
Super AMOLED
Size
A6 4G
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
R15x
6.4 inches, 101.0 cm2 (~84.5% screen-to-body ratio)
Resolution
A6 4G
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
R15x
1080 x 2340 pixels, 19.5:9 ratio (~402 ppi density)
Protection
A6 4G
-
R15x
Corning Gorilla Glass 5
OS
A6 4G
Android 15, ColorOS 15
R15x
Android 8.1 (Oreo), planned upgrade to Android 9.0 (Pie), ColorOS 6.0
Chipset
A6 4G
Qualcomm SM6225 Snapdragon 685 (6 nm)
R15x
Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU
A6 4G
Octa-core (4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53)
R15x
Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU
A6 4G
Adreno 610
R15x
Adreno 512
Card slot
A6 4G
microSDXC
R15x
No
Internal
A6 4G
128GB 6GB RAM, 128GB 8GB RAM, 256GB 4GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
R15x
128GB 6GB RAM
Other
A6 4G
UFS 2.2
R15x
eMMC 5.1
Dual
A6 4G
50 MP, f/1.8, (wide), PDAF Auxiliary lens
R15x
16 MP, f/1.7, 1/2.8", 1.12µm, PDAF Auxiliary lens
Features
A6 4G
LED flash, HDR, panorama
R15x
LED flash, HDR, panorama
Video
A6 4G
1080p@30fps
R15x
4K@30fps, 1080p@30fps
Single
A6 4G
8 MP, f/2.0, (wide)
R15x
25 MP, f/2.0, 1/2.8", 0.9µm
Features
A6 4G
Panorama
R15x
HDR
Video
A6 4G
1080p@30fps
R15x
1080p@30fps
Loudspeaker
A6 4G
Yes, with stereo speakers
R15x
Yes
3.5mm jack
A6 4G
No
R15x
Yes
WLAN
A6 4G
Wi-Fi 802.11 a/b/g/n/ac, dual-band
R15x
Wi-Fi 802.11 а/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
A6 4G
5.0, A2DP, LE, aptX
R15x
5.0, A2DP, LE
Positioning
A6 4G
GPS, GALILEO, GLONASS, QZSS
R15x
GPS
NFC
A6 4G
Yes (market/region dependent)
R15x
No
Radio
A6 4G
Unspecified
R15x
No
USB
A6 4G
USB Type-C 2.0, OTG
R15x
microUSB 2.0, OTG
Sensors
A6 4G
Fingerprint (side-mounted), accelerometer, proximity, compass
R15x
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
A6 4G
Si/C Li-Ion 7000 mAh
R15x
Li-Ion 3600 mAh, non-removable
Charging
A6 4G
45W wired, 33W PPS, 13.5W PD, 36% in 30 min 5W reverse wired
R15x
10W wired
Colors
A6 4G
Sapphire Blue, Aurora Gold
R15x
Nebula, Silver Green
Models
A6 4G
CPH2817
R15x
PBCM10
Price
A6 4G
-
R15x
About 350 EUR