Screen size
A6sWinner: 6.8"+1.2%
K12x6.7"
Quick verdict
A6s leads the measured specs 10-5.
Measured wins
A6s
10
spec wins
Overall winner
Ties
7
equal specs
K12x
5
spec wins
Screen size
Technology
A6s
GSM / HSPA / LTE / 5G
K12x
GSM / HSPA / LTE / 5G
2G bands
A6s
GSM 850 / 900 / 1800 / 1900
K12x
GSM 850 / 900 / 1800 / 1900
3G bands
A6s
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
K12x
HSDPA 900 / 2100
4G bands
A6s
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 42, 48, 66, 71
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
equal specsRAM
equal specsStorage
equal specsMain 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
K12x
1, 3, 5, 8, 28, 40, 41
5G bands
A6s
1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA
K12x
1, 3, 5, 8, 28, 40, 41, 77, 88 SA/NSA
Speed
A6s
HSPA, LTE, 5G
K12x
HSPA, LTE, 5G
Announced
A6s
2026, January 13
K12x
2024, July 29
Status
A6s
Available. Released 2026, January 13
K12x
Available. Released 2024, August 02
Dimensions
A6s
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
K12x
165.7 x 76 x 7.7 mm (6.52 x 2.99 x 0.30 in)
Weight
A6s
216 g (7.62 oz)
K12x
186 g (6.56 oz)
Build
A6s
Glass front, plastic frame, plastic back
K12x
-
SIM
A6s
Nano-SIM + Nano-SIM
K12x
Nano-SIM + Nano-SIM
Other
A6s
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
K12x
IP54 dust protected and water resistant (water splashes) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Type
A6s
IPS LCD, 120Hz, 1125 nits (peak)
K12x
IPS LCD, 120Hz, 1000 nits (HBM)
Size
A6s
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
K12x
6.67 inches, 107.2 cm2 (~85.2% screen-to-body ratio)
Resolution
A6s
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
K12x
720 x 1604 pixels, 20:9 ratio (~264 ppi density)
Protection
A6s
-
K12x
Panda glass
OS
A6s
Android 15, ColorOS 15
K12x
Android 14, ColorOS 14
Chipset
A6s
Mediatek Dimensity 6300 (6 nm)
K12x
Mediatek Dimensity 6300 (6 nm)
CPU
A6s
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
K12x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
A6s
Mali-G57 MC2
K12x
Mali-G57 MC2
Card slot
A6s
microSDXC
K12x
microSDXC
Internal
A6s
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
K12x
128GB 6GB RAM, 256GB 8GB RAM
Other
A6s
UFS 2.2
K12x
UFS 2.2
Dual
A6s
50 MP, f/1.8, (wide), PDAF Auxiliary lens
K12x
32 MP, f/1.8, (wide), PDAF Auxiliary lens
Features
A6s
LED flash, HDR, panorama
K12x
LED flash, HDR, panorama
Video
A6s
1080p@30/60fps
K12x
1080p@30/60fps
Single
A6s
16 MP, f/2.4, (wide)
K12x
8 MP, f/2.0, (wide)
Features
A6s
Panorama
K12x
-
Video
A6s
1080p@30fps
K12x
1080p@30fps
Loudspeaker
A6s
Yes, with stereo speakers
K12x
Yes
3.5mm jack
A6s
No
K12x
Yes
WLAN
A6s
Wi-Fi 802.11 a/b/g/n/ac, dual-band
K12x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
A6s
5.4, A2DP, LE, aptX HD
K12x
5.3, A2DP, LE, aptX HD
Positioning
A6s
GPS, GALILEO, GLONASS, QZSS
K12x
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
A6s
Yes (market/region dependent)
K12x
No
Radio
A6s
Unspecified
K12x
No
USB
A6s
USB Type-C 2.0, OTG
K12x
USB Type-C 2.0, OTG
Sensors
A6s
Fingerprint (side-mounted), accelerometer, proximity, compass
K12x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
A6s
Si/C Li-Ion 7000 mAh
K12x
5100 mAh
Charging
A6s
80W wired, 33W PPS, 13.5W PD, 54% in 30 min 5W reverse wired
K12x
45W wired, PD, 50% in 30 min
Colors
A6s
Cappuccino Brown, Ice White
K12x
Breeze Blue, Midnight Violet
Models
A6s
CPH2789
K12x
CPH2667
SAR
A6s
-
K12x
1.18 W/kg (head) 1.19 W/kg (body)
Price
A6s
-
K12x
₹ 15,900