Screen size
A6s ProWinner: 6.6"+2.6%
A916.4"
Quick verdict
A6s Pro leads the measured specs 15-5.
Measured wins
A6s Pro
15
spec wins
Overall winner
Ties
3
equal specs
A91
5
spec wins
Screen size
Technology
A6s Pro
GSM / HSPA / LTE
A91
GSM / CDMA / HSPA / LTE
2G bands
A6s Pro
GSM 850 / 900 / 1800 / 1900
A91
GSM 850 / 900 / 1800 / 1900 , CDMA 800 & TD-SCDMA
3G bands
A6s Pro
HSDPA 850 / 900 / 2100
A91
HSDPA 850 / 1700(AWS) / 1900 / 2100 - International, HSDPA 850 / 900 / 2100 - Southeast Asia
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
A91
1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International, 1, 3, 5, 7, 8, 38, 40, 41, 1, 3, 5, 8, 38, 40, 41 - Southeast Asia, 1, 3, 4, 5, 8, 34, 38, 39, 40, 41 - China
Speed
A6s Pro
HSPA, LTE
A91
HSPA, LTE
Announced
A6s Pro
2026, February 24
A91
2019, December 20. Released 2019, December
Status
A6s Pro
Available. Released 2026, March 03
A91
Discontinued
Dimensions
A6s Pro
158.2 x 75 x 8 mm (6.23 x 2.95 x 0.31 in)
A91
160.2 x 73.3 x 7.9 mm (6.31 x 2.89 x 0.31 in)
Weight
A6s Pro
190 g (6.70 oz)
A91
172 g (6.07 oz)
Build
A6s Pro
Glass front, plastic frame, plastic back
A91
Glass front (Gorilla Glass 5), plastic back, plastic frame
SIM
A6s Pro
Nano-SIM + Nano-SIM
A91
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
A91
-
Type
A6s Pro
AMOLED, 1B colors, 120Hz, 600 nits (typ), 1400 nits (HBM)
A91
AMOLED, 430 nits (typ)
Size
A6s Pro
6.57 inches, 105.0 cm2 (~88.5% screen-to-body ratio)
A91
6.4 inches, 100.4 cm2 (~85.5% screen-to-body ratio)
Resolution
A6s Pro
1080 x 2372 pixels (~397 ppi density)
A91
1080 x 2400 pixels, 20:9 ratio (~408 ppi density)
Protection
A6s Pro
AGC DT-Star D+
A91
Corning Gorilla Glass 5
OS
A6s Pro
Android 16, ColorOS 16
A91
Android 9.0 (Pie), upgradable to Android 11, ColorOS 11
Chipset
A6s Pro
Mediatek Helio G100 Max (6 nm)
A91
Mediatek MT6771V Helio P70 (12 nm)
CPU
A6s Pro
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
A91
Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU
A6s Pro
Mali-G57 MC2
A91
Mali-G72 MP3
Card slot
A6s Pro
microSDXC
A91
microSDXC (dedicated slot)
Internal
A6s Pro
256GB 8GB RAM
A91
128GB 4GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
Other
A6s Pro
UFS 2.2
A91
UFS 2.1
Dual
A6s Pro
50 MP, f/1.8, (wide), PDAF Auxiliary lens
A91
-
Features
A6s Pro
LED flash, HDR, panorama
A91
LED flash, HDR, panorama
Video
A6s Pro
1080p@30/60/120fps
A91
1080p@30fps, gyro-EIS
Quad
A6s Pro
-
A91
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.3, 119˚ (ultrawide), 1/4.0", 1.12µm 2 MP B/W, f/2.4, 1/5.0", 1.75µm Auxiliary lens
Single
A6s Pro
50 MP, (wide)
A91
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Features
A6s Pro
Panorama
A91
HDR
Video
A6s Pro
1080p@30fps
A91
1080p@30fps
Loudspeaker
A6s Pro
Yes, with stereo speakers
A91
Yes
3.5mm jack
A6s Pro
No
A91
Yes
WLAN
A6s Pro
Wi-Fi 802.11 a/b/g/n/ac, dual-band
A91
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
A6s Pro
5.4, A2DP, LE, aptX HD
A91
4.2, A2DP, LE
Positioning
A6s Pro
GPS, GALILEO, GLONASS, BDS, QZSS
A91
GPS, GLONASS, BDS
NFC
A6s Pro
Yes (market/region dependent)
A91
No
Radio
A6s Pro
Unspecified
A91
FM radio
USB
A6s Pro
USB Type-C 2.0, OTG
A91
USB Type-C 2.0, OTG
Sensors
A6s Pro
Fingerprint (under display, optical), accelerometer, gyro, proximity
A91
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
A6s Pro
Si/C Li-Ion 7000 mAh
A91
Li-Po 4025 mAh, non-removable
Charging
A6s Pro
80W wired, 33W PPS, 13.5W PD 5W reverse wired
A91
20W wired, 50% in 30 min
Colors
A6s Pro
Lumina Frost, Eclipse Blue
A91
Lightening Black, Unicorn White, Blazing Blue, Red
Price
A6s Pro
About 280 EUR
A91
About 200 EUR
Models
A6s Pro
-
A91
PCPM00, CPH2001, CPH2021