Screen size
A1 (2018)5.7"
K15xWinner: 6.8"+16%
Quick verdict
K15x leads the measured specs 13-5.
Measured wins
A1 (2018)
5
spec wins
Ties
4
equal specs
K15x
13
spec wins
Overall winner
Screen size
Technology
A1 (2018)
GSM / CDMA / HSPA / LTE
K15x
GSM / HSPA / LTE / 5G
2G bands
A1 (2018)
GSM 850 / 900 / 1800 / 1900 , CDMA 800 & TD-SCDMA
K15x
GSM 850 / 900 / 1800 / 1900
3G bands
A1 (2018)
HSDPA 850 / 900 / 1900 / 2100
K15x
HSDPA 850 / 900 / 2100
4G bands
A1 (2018)
1, 3, 5, 7, 8, 34, 38, 39, 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
A1 (2018)
HSPA, LTE
K15x
HSPA, LTE, 5G
5G bands
A1 (2018)
-
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
Announced
A1 (2018)
2018, March. Released 2018, April
K15x
2026, October 02
Status
A1 (2018)
Discontinued
K15x
Available. Released 2026, October 02
Dimensions
A1 (2018)
150.5 x 73.1 x 7.7 mm (5.93 x 2.88 x 0.30 in)
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Weight
A1 (2018)
143 g (5.04 oz)
K15x
212 g (7.48 oz)
SIM
A1 (2018)
Nano-SIM + Nano-SIM
K15x
Nano-SIM + Nano-SIM
Build
A1 (2018)
-
K15x
Glass front, plastic frame, plastic back
Other
A1 (2018)
-
K15x
IP64 dust tight and water resistant (water splashes)
Type
A1 (2018)
S-IPS LCD
K15x
IPS LCD, 120Hz, 1125 nits (peak)
Size
A1 (2018)
5.7 inches, 83.8 cm2 (~76.2% screen-to-body ratio)
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Resolution
A1 (2018)
720 x 1440 pixels, 18:9 ratio (~282 ppi density)
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Protection
A1 (2018)
Corning Gorilla Glass 3
K15x
-
OS
A1 (2018)
Android 7.1.1 (Nougat), ColorOS 3.2
K15x
Android 16, ColorOS 16
Chipset
A1 (2018)
Mediatek MT6763T Helio P23 (16 nm)
K15x
Mediatek Dimensity 6300 (6 nm)
CPU
A1 (2018)
Octa-core 2.5 GHz Cortex-A53
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
A1 (2018)
Mali-G71 MP1
K15x
Mali-G57 MC2
Card slot
A1 (2018)
microSDXC (dedicated slot)
K15x
microSDXC
Internal
A1 (2018)
32GB 3GB RAM, 64GB 4GB RAM
K15x
128GB 6GB RAM, 256GB 6GB RAM
Other
A1 (2018)
eMMC 5.1
K15x
UFS 2.2
Single
A1 (2018)
13 MP, f/2.2, 1/3.1", 1.12µm, PDAF
K15x
-
Features
A1 (2018)
LED flash, panorama
K15x
LED flash, HDR, panorama
Video
A1 (2018)
1080p@30fps
K15x
1080p@30/60fps
Dual
A1 (2018)
-
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Single
A1 (2018)
8 MP, f/2.2
K15x
5 MP, f/2.2, 27mm (wide)
Video
A1 (2018)
K15x
1080p@30fps
Features
A1 (2018)
-
K15x
Panorama
Loudspeaker
A1 (2018)
Yes
K15x
Yes
3.5mm jack
A1 (2018)
Yes
K15x
Yes
WLAN
A1 (2018)
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
A1 (2018)
4.2, A2DP, LE
K15x
5.4, A2DP, LE, aptX HD
Positioning
A1 (2018)
GPS
K15x
GPS, GALILEO, GLONASS, QZSS
NFC
A1 (2018)
No
K15x
Yes
Radio
A1 (2018)
FM radio
K15x
No
USB
A1 (2018)
microUSB 2.0, OTG
K15x
USB Type-C 2.0, OTG
Sensors
A1 (2018)
Accelerometer, proximity, compass
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
A1 (2018)
Li-Ion 3180 mAh, non-removable
K15x
6500 mAh
Charging
A1 (2018)
-
K15x
45W wired 5W reverse wired
Colors
A1 (2018)
Deep sea blue, Cherry red, Pearl white
K15x
Purple, White
Price
A1 (2018)
About 150 EUR
K15x
About 230 EUR
Models
A1 (2018)
-
K15x
PLT150