Screen size
A6s 4GWinner: 6.8"+19%
A77 (2017)5.5"
Quick verdict
A6s 4G leads the measured specs 13-5.
Measured wins
A6s 4G
13
spec wins
Overall winner
Ties
4
equal specs
A77 (2017)
5
spec wins
Screen size
Technology
A6s 4G
GSM / HSPA / LTE
A77 (2017)
GSM / CDMA / HSPA / LTE
2G bands
A6s 4G
GSM 850 / 900 / 1800 / 1900
A77 (2017)
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2, CDMA 800 & TD-SCDMA
3G bands
A6s 4G
HSDPA 850 / 900 / 2100 - version 1, HSDPA 900 / 2100 - version 2
A77 (2017)
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
A6s 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
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
A77 (2017)
1, 3, 4, 5, 8, 34, 38, 39, 40, 41 - A77, 1, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41 - A77t
Speed
A6s 4G
HSPA, LTE
A77 (2017)
HSPA, LTE
Announced
A6s 4G
2026, January 09
A77 (2017)
2017, July. Released 2017, July
Status
A6s 4G
Available. Released 2026, January 09
A77 (2017)
Discontinued
Dimensions
A6s 4G
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
A77 (2017)
153.3 x 75.9 x 7.4 mm (6.04 x 2.99 x 0.29 in)
Weight
A6s 4G
215 g (7.58 oz)
A77 (2017)
148 g (5.22 oz)
Build
A6s 4G
Glass front, plastic frame, plastic back
A77 (2017)
Glass front, aluminum back, aluminum frame
SIM
A6s 4G
Nano-SIM + Nano-SIM
A77 (2017)
Nano-SIM + Nano-SIM
Other
A6s 4G
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
A77 (2017)
-
Type
A6s 4G
IPS LCD, 120Hz, 1125 nits (peak)
A77 (2017)
IPS LCD
Size
A6s 4G
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
A77 (2017)
5.5 inches, 83.4 cm2 (~71.7% screen-to-body ratio)
Resolution
A6s 4G
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
A77 (2017)
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
OS
A6s 4G
Android 15, ColorOS 15
A77 (2017)
Android 7.1 (Nougat), ColorOS 3.1
Chipset
A6s 4G
Qualcomm SM6225 Snapdragon 685 (6 nm)
A77 (2017)
Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU
A6s 4G
Octa-core (4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53)
A77 (2017)
Octa-core 2.0 GHz Cortex-A53
GPU
A6s 4G
Adreno 610
A77 (2017)
Adreno 506
Card slot
A6s 4G
microSDXC
A77 (2017)
microSDXC (uses shared SIM slot)
Internal
A6s 4G
128GB 8GB RAM, 256GB 8GB RAM
A77 (2017)
64GB 4GB RAM
Other
A6s 4G
UFS 2.2
A77 (2017)
eMMC 5.1
Dual
A6s 4G
50 MP, f/1.8, (wide), PDAF Auxiliary lens
A77 (2017)
-
Features
A6s 4G
LED flash, HDR, panorama
A77 (2017)
LED flash, HDR, panorama
Video
A6s 4G
1080p@30fps
A77 (2017)
1080p@30fps
Single
A6s 4G
-
A77 (2017)
13 MP, f/2.2, PDAF
Single
A6s 4G
16 MP, f/2.4, (wide)
A77 (2017)
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Features
A6s 4G
Panorama
A77 (2017)
-
Video
A6s 4G
1080p@30fps
A77 (2017)
1080p@30fps
Loudspeaker
A6s 4G
Yes, with stereo speakers
A77 (2017)
Yes
3.5mm jack
A6s 4G
No
A77 (2017)
Yes
WLAN
A6s 4G
Wi-Fi 802.11 a/b/g/n/ac, dual-band
A77 (2017)
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
Bluetooth
A6s 4G
5.0, A2DP, LE, aptX
A77 (2017)
4.2, A2DP
Positioning
A6s 4G
GPS, GALILEO, GLONASS, QZSS
A77 (2017)
GPS
NFC
A6s 4G
Yes (market/region dependent)
A77 (2017)
No
Radio
A6s 4G
Unspecified
A77 (2017)
No
USB
A6s 4G
USB Type-C 2.0, OTG
A77 (2017)
microUSB 2.0, OTG
Sensors
A6s 4G
Fingerprint (side-mounted), accelerometer, proximity, compass
A77 (2017)
Fingerprint (front-mounted), accelerometer, proximity, compass
Type
A6s 4G
Si/C Li-Ion 7000 mAh
A77 (2017)
Li-Ion 3200 mAh, non-removable
Charging
A6s 4G
80W wired, 33W PPS, 13.5W PD, 56% in 30 min 5W reverse wired
A77 (2017)
-
Colors
A6s 4G
Cappuccino Brown, Ice White
A77 (2017)
Gold, Rose Gold, Black
Models
A6s 4G
CPH2815
A77 (2017)
CPH1715
Price
A6s 4G
-
A77 (2017)
About 280 EUR