Screen size
A536.5"
K15xWinner: 6.8"+3.7%
Quick verdict
K15x leads the measured specs 12-6.
Measured wins
A53
6
spec wins
Ties
5
equal specs
K15x
12
spec wins
Overall winner
Screen size
Technology
A53
GSM / HSPA / LTE
K15x
GSM / HSPA / LTE / 5G
2G bands
A53
GSM 850 / 900 / 1800 / 1900
K15x
GSM 850 / 900 / 1800 / 1900
3G bands
A53
HSDPA 850 / 900 / 2100
K15x
HSDPA 850 / 900 / 2100
4G bands
A53
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
equal specsUSB
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
A53
HSPA, LTE
K15x
HSPA, LTE, 5G
5G bands
A53
-
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
Announced
A53
2020, August 20. Released 2020, August 25
K15x
2026, October 02
Status
A53
Discontinued
K15x
Available. Released 2026, October 02
Dimensions
A53
163.9 x 75.1 x 8.4 mm (6.45 x 2.96 x 0.33 in)
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Weight
A53
186 g (6.56 oz)
K15x
212 g (7.48 oz)
SIM
A53
Nano-SIM + Nano-SIM
K15x
Nano-SIM + Nano-SIM
Build
A53
-
K15x
Glass front, plastic frame, plastic back
Other
A53
-
K15x
IP64 dust tight and water resistant (water splashes)
Type
A53
IPS LCD, 90Hz
K15x
IPS LCD, 120Hz, 1125 nits (peak)
Size
A53
6.5 inches, 102.0 cm2 (~82.9% screen-to-body ratio)
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Resolution
A53
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Protection
A53
Corning Gorilla Glass 3
K15x
-
OS
A53
Android 10, upgradable to Android 11
K15x
Android 16, ColorOS 16
Chipset
A53
Qualcomm SM4250 Snapdragon 460 (11 nm)
K15x
Mediatek Dimensity 6300 (6 nm)
CPU
A53
Octa-core (4x1.8 GHz Kryo 240 & 4x1.6 GHz Kryo 240)
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
A53
Adreno 610
K15x
Mali-G57 MC2
Card slot
A53
microSDXC (dedicated slot)
K15x
microSDXC
Internal
A53
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 256GB 8GB RAM
K15x
128GB 6GB RAM, 256GB 6GB RAM
Other
A53
UFS 2.1
K15x
UFS 2.2
Triple
A53
13 MP, f/2.2, 25mm (wide), 1/3.06", 1.12µm, PDAF 2 MP (macro) Auxiliary lens
K15x
-
Features
A53
LED flash, HDR, panorama
K15x
LED flash, HDR, panorama
Video
A53
1080p@30fps
K15x
1080p@30/60fps
Dual
A53
-
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Single
A53
16 MP, f/2.0, (wide), 1/3.06", 1.0µm
K15x
5 MP, f/2.2, 27mm (wide)
Features
A53
HDR
K15x
Panorama
Video
A53
1080p@30fps
K15x
1080p@30fps
Loudspeaker
A53
Yes, with stereo speakers
K15x
Yes
3.5mm jack
A53
Yes
K15x
Yes
WLAN
A53
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
A53
5.0, A2DP, LE, aptX HD
K15x
5.4, A2DP, LE, aptX HD
Positioning
A53
GPS, GLONASS, GALILEO, BDS
K15x
GPS, GALILEO, GLONASS, QZSS
NFC
A53
No
K15x
Yes
Radio
A53
FM radio
K15x
No
USB
A53
USB Type-C 2.0, OTG
K15x
USB Type-C 2.0, OTG
Sensors
A53
Fingerprint (rear-mounted), accelerometer, proximity, compass
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
A53
Li-Po 5000 mAh
K15x
6500 mAh
Charging
A53
18W wired
K15x
45W wired 5W reverse wired
Colors
A53
Fairy White, Electric Black, Fancy Blue
K15x
Purple, White
Models
A53
CPH2127, CPH2131
K15x
PLT150
SAR
A53
0.77 W/kg (head) 0.97 W/kg (body)
K15x
-
Price
A53
£ 59.00
K15x
About 230 EUR