Screen size
A6s ProWinner: 6.6"+16%
A77 (2017)5.5"
Quick verdict
A6s Pro leads the measured specs 16-4.
Measured wins
A6s Pro
16
spec wins
Overall winner
Ties
3
equal specs
A77 (2017)
4
spec wins
Screen size
Technology
A6s Pro
GSM / HSPA / LTE
A77 (2017)
GSM / CDMA / HSPA / LTE
2G bands
A6s Pro
GSM 850 / 900 / 1800 / 1900
A77 (2017)
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2, CDMA 800 & TD-SCDMA
3G bands
A6s Pro
HSDPA 850 / 900 / 2100
A77 (2017)
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
A6s Pro
LTE
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
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 Pro
HSPA, LTE
A77 (2017)
HSPA, LTE
Announced
A6s Pro
2026, February 24
A77 (2017)
2017, July. Released 2017, July
Status
A6s Pro
Available. Released 2026, March 03
A77 (2017)
Discontinued
Dimensions
A6s Pro
158.2 x 75 x 8 mm (6.23 x 2.95 x 0.31 in)
A77 (2017)
153.3 x 75.9 x 7.4 mm (6.04 x 2.99 x 0.29 in)
Weight
A6s Pro
190 g (6.70 oz)
A77 (2017)
148 g (5.22 oz)
Build
A6s Pro
Glass front, plastic frame, plastic back
A77 (2017)
Glass front, aluminum back, aluminum frame
SIM
A6s Pro
Nano-SIM + Nano-SIM
A77 (2017)
Nano-SIM + Nano-SIM
Other
A6s Pro
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
A77 (2017)
-
Type
A6s Pro
AMOLED, 1B colors, 120Hz, 600 nits (typ), 1400 nits (HBM)
A77 (2017)
IPS LCD
Size
A6s Pro
6.57 inches, 105.0 cm2 (~88.5% screen-to-body ratio)
A77 (2017)
5.5 inches, 83.4 cm2 (~71.7% screen-to-body ratio)
Resolution
A6s Pro
1080 x 2372 pixels (~397 ppi density)
A77 (2017)
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Protection
A6s Pro
AGC DT-Star D+
A77 (2017)
-
OS
A6s Pro
Android 16, ColorOS 16
A77 (2017)
Android 7.1 (Nougat), ColorOS 3.1
Chipset
A6s Pro
Mediatek Helio G100 Max (6 nm)
A77 (2017)
Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU
A6s Pro
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
A77 (2017)
Octa-core 2.0 GHz Cortex-A53
GPU
A6s Pro
Mali-G57 MC2
A77 (2017)
Adreno 506
Card slot
A6s Pro
microSDXC
A77 (2017)
microSDXC (uses shared SIM slot)
Internal
A6s Pro
256GB 8GB RAM
A77 (2017)
64GB 4GB RAM
Other
A6s Pro
UFS 2.2
A77 (2017)
eMMC 5.1
Dual
A6s Pro
50 MP, f/1.8, (wide), PDAF Auxiliary lens
A77 (2017)
-
Features
A6s Pro
LED flash, HDR, panorama
A77 (2017)
LED flash, HDR, panorama
Video
A6s Pro
1080p@30/60/120fps
A77 (2017)
1080p@30fps
Single
A6s Pro
-
A77 (2017)
13 MP, f/2.2, PDAF
Single
A6s Pro
50 MP, (wide)
A77 (2017)
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Features
A6s Pro
Panorama
A77 (2017)
-
Video
A6s Pro
1080p@30fps
A77 (2017)
1080p@30fps
Loudspeaker
A6s Pro
Yes, with stereo speakers
A77 (2017)
Yes
3.5mm jack
A6s Pro
No
A77 (2017)
Yes
WLAN
A6s Pro
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 Pro
5.4, A2DP, LE, aptX HD
A77 (2017)
4.2, A2DP
Positioning
A6s Pro
GPS, GALILEO, GLONASS, BDS, QZSS
A77 (2017)
GPS
NFC
A6s Pro
Yes (market/region dependent)
A77 (2017)
No
Radio
A6s Pro
Unspecified
A77 (2017)
No
USB
A6s Pro
USB Type-C 2.0, OTG
A77 (2017)
microUSB 2.0, OTG
Sensors
A6s Pro
Fingerprint (under display, optical), accelerometer, gyro, proximity
A77 (2017)
Fingerprint (front-mounted), accelerometer, proximity, compass
Type
A6s Pro
Si/C Li-Ion 7000 mAh
A77 (2017)
Li-Ion 3200 mAh, non-removable
Charging
A6s Pro
80W wired, 33W PPS, 13.5W PD 5W reverse wired
A77 (2017)
-
Colors
A6s Pro
Lumina Frost, Eclipse Blue
A77 (2017)
Gold, Rose Gold, Black
Price
A6s Pro
About 280 EUR
A77 (2017)
About 280 EUR
Models
A6s Pro
-
A77 (2017)
CPH1715