Screen size
A3s6.2"
K15xWinner: 6.8"+8.1%
Quick verdict
K15x leads the measured specs 14-4.
Measured wins
A3s
4
spec wins
Ties
4
equal specs
K15x
14
spec wins
Overall winner
Screen size
Technology
A3s
GSM / HSPA / LTE
K15x
GSM / HSPA / LTE / 5G
2G bands
A3s
GSM 850 / 900 / 1800 / 1900
K15x
GSM 850 / 900 / 1800 / 1900
3G bands
A3s
HSDPA 850 / 900 / 2100
K15x
HSDPA 850 / 900 / 2100
4G bands
A3s
1, 3, 5, 8, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
NFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
K15x
1, 3, 5, 8, 28, 34, 38, 39, 40, 41
Speed
A3s
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
K15x
HSPA, LTE, 5G
5G bands
A3s
-
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
Announced
A3s
2018, July 13. Released 2018, July
K15x
2026, October 02
Status
A3s
Discontinued
K15x
Available. Released 2026, October 02
Dimensions
A3s
156.2 x 75.6 x 8.2 mm (6.15 x 2.98 x 0.32 in)
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Weight
A3s
168 g (5.93 oz)
K15x
212 g (7.48 oz)
Build
A3s
Glass front (Gorilla Glass 3), plastic back, plastic frame
K15x
Glass front, plastic frame, plastic back
SIM
A3s
Nano-SIM + Nano-SIM
K15x
Nano-SIM + Nano-SIM
Other
A3s
-
K15x
IP64 dust tight and water resistant (water splashes)
Type
A3s
IPS LCD
K15x
IPS LCD, 120Hz, 1125 nits (peak)
Size
A3s
6.2 inches, 95.9 cm2 (~81.2% screen-to-body ratio)
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Resolution
A3s
720 x 1520 pixels, 19:9 ratio (~271 ppi density)
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Protection
A3s
Corning Gorilla Glass 3
K15x
-
OS
A3s
Android 8.1 (Oreo), ColorOS 5.1
K15x
Android 16, ColorOS 16
Chipset
A3s
Qualcomm SDM450 Snapdragon 450 (14 nm)
K15x
Mediatek Dimensity 6300 (6 nm)
CPU
A3s
Octa-core 1.8 GHz Cortex-A53
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
A3s
Adreno 506
K15x
Mali-G57 MC2
Card slot
A3s
microSDXC (dedicated slot)
K15x
microSDXC
Internal
A3s
16GB 2GB RAM, 32GB 3GB RAM, 64GB 4GB RAM
K15x
128GB 6GB RAM, 256GB 6GB RAM
Other
A3s
eMMC 5.1
K15x
UFS 2.2
Dual
A3s
13 MP, f/2.2, AF Auxiliary lens
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Features
A3s
LED flash, HDR, panorama
K15x
LED flash, HDR, panorama
Video
A3s
1080p@30fps
K15x
1080p@30/60fps
Single
A3s
8 MP, f/2.2
K15x
5 MP, f/2.2, 27mm (wide)
Video
A3s
1080p@30fps
K15x
1080p@30fps
Features
A3s
-
K15x
Panorama
Loudspeaker
A3s
Yes
K15x
Yes
3.5mm jack
A3s
Yes
K15x
Yes
WLAN
A3s
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
A3s
4.2, A2DP, LE
K15x
5.4, A2DP, LE, aptX HD
Positioning
A3s
GPS
K15x
GPS, GALILEO, GLONASS, QZSS
NFC
A3s
No
K15x
Yes
Radio
A3s
FM radio
K15x
No
USB
A3s
microUSB 2.0, OTG
K15x
USB Type-C 2.0, OTG
Sensors
A3s
Accelerometer, gyro, proximity, compass
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
A3s
Li-Ion 4230 mAh, non-removable
K15x
6500 mAh
Charging
A3s
20W wired
K15x
45W wired 5W reverse wired
Colors
A3s
Red, Dark Purple
K15x
Purple, White
Models
A3s
CPH1803, CPH1853, CPH1805
K15x
PLT150
Price
A3s
About 11000 INR
K15x
About 230 EUR