Screen size
A3 (2018)6.2"
K15xWinner: 6.8"+8.1%
Quick verdict
K15x leads the measured specs 12-6.
Measured wins
A3 (2018)
6
spec wins
Ties
4
equal specs
K15x
12
spec wins
Overall winner
Screen size
Technology
A3 (2018)
GSM / CDMA / HSPA / LTE
K15x
GSM / HSPA / LTE / 5G
2G bands
A3 (2018)
GSM 850 / 900 / 1800 / 1900 , CDMA 800 & TD-SCDMA
K15x
GSM 850 / 900 / 1800 / 1900
3G bands
A3 (2018)
HSDPA 850 / 900 / 1900 / 2100 , HSDPA 850 / 1700(AWS) / 1900 / 2100
K15x
HSDPA 850 / 900 / 2100
4G bands
A3 (2018)
1, 3, 5, 7, 8, 34, 38, 39, 40, 41, 1, 3, 4, 5, 8, 34, 38, 39, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front 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
A3 (2018)
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat13 600/100 Mbps
K15x
HSPA, LTE, 5G
5G bands
A3 (2018)
-
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
Announced
A3 (2018)
2018, April. Released 2018, May
K15x
2026, October 02
Status
A3 (2018)
Discontinued
K15x
Available. Released 2026, October 02
Dimensions
A3 (2018)
156 x 75.3 x 7.8 mm (6.14 x 2.96 x 0.31 in)
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Weight
A3 (2018)
159 g (5.61 oz)
K15x
212 g (7.48 oz)
SIM
A3 (2018)
Nano-SIM + Nano-SIM
K15x
Nano-SIM + Nano-SIM
Build
A3 (2018)
-
K15x
Glass front, plastic frame, plastic back
Other
A3 (2018)
-
K15x
IP64 dust tight and water resistant (water splashes)
Type
A3 (2018)
IPS LCD
K15x
IPS LCD, 120Hz, 1125 nits (peak)
Size
A3 (2018)
6.2 inches, 96.9 cm2 (~82.5% screen-to-body ratio)
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Resolution
A3 (2018)
1080 x 2280 pixels, 19:9 ratio (~405 ppi density)
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
OS
A3 (2018)
Android 8.1 (Oreo), ColorOS 5
K15x
Android 16, ColorOS 16
Chipset
A3 (2018)
Mediatek MT6771 Helio P60 (12 nm)
K15x
Mediatek Dimensity 6300 (6 nm)
CPU
A3 (2018)
Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
A3 (2018)
Mali-G72 MP3
K15x
Mali-G57 MC2
Card slot
A3 (2018)
microSDXC (dedicated slot)
K15x
microSDXC
Internal
A3 (2018)
128GB 4GB RAM
K15x
128GB 6GB RAM, 256GB 6GB RAM
Other
A3 (2018)
eMMC 5.1
K15x
UFS 2.2
Single
A3 (2018)
16 MP, f/1.8, PDAF
K15x
-
Features
A3 (2018)
LED flash, HDR, panorama
K15x
LED flash, HDR, panorama
Video
A3 (2018)
1080p@30fps
K15x
1080p@30/60fps
Dual
A3 (2018)
-
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Single
A3 (2018)
8 MP, f/2.2
K15x
5 MP, f/2.2, 27mm (wide)
Video
A3 (2018)
K15x
1080p@30fps
Features
A3 (2018)
-
K15x
Panorama
Loudspeaker
A3 (2018)
Yes
K15x
Yes
3.5mm jack
A3 (2018)
Yes
K15x
Yes
WLAN
A3 (2018)
Wi-Fi 802.11 b/g/n/ac, dual-band, Wi-Fi Direct
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
A3 (2018)
4.2, A2DP, LE
K15x
5.4, A2DP, LE, aptX HD
Positioning
A3 (2018)
GPS
K15x
GPS, GALILEO, GLONASS, QZSS
NFC
A3 (2018)
No
K15x
Yes
Radio
A3 (2018)
FM radio
K15x
No
USB
A3 (2018)
microUSB 2.0, OTG
K15x
USB Type-C 2.0, OTG
Sensors
A3 (2018)
Accelerometer, gyro, proximity, compass
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
A3 (2018)
Li-Ion 3400 mAh, non-removable
K15x
6500 mAh
Charging
A3 (2018)
-
K15x
45W wired 5W reverse wired
Colors
A3 (2018)
Knight Black, Soybean Meal, Stardust Silver, Garnet Red
K15x
Purple, White
Models
A3 (2018)
PADM00, CPH1837, PADT00
K15x
PLT150
Price
A3 (2018)
About 330 EUR
K15x
About 230 EUR