Screen size
A71 (2018)5.2"
K15xWinner: 6.8"+23%
Quick verdict
K15x leads the measured specs 14-3.
Measured wins
A71 (2018)
3
spec wins
Ties
5
equal specs
K15x
14
spec wins
Overall winner
Screen size
Technology
A71 (2018)
GSM / UMTS / LTE
K15x
GSM / HSPA / LTE / 5G
2G bands
A71 (2018)
GSM 850 / 900 / 1800 / 1900
K15x
GSM 850 / 900 / 1800 / 1900
3G bands
A71 (2018)
UMTS 900 / 2100 / 850
K15x
HSDPA 850 / 900 / 2100
4G bands
A71 (2018)
1, 3, 5, 7, 8, 38, 40, 41, 1, 3, 5, 8, 38, 40, 41 - India
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
equal specsBattery
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
A71 (2018)
HSPA, LTE
K15x
HSPA, LTE, 5G
5G bands
A71 (2018)
-
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
Announced
A71 (2018)
2018, February. Released 2018, February
K15x
2026, October 02
Status
A71 (2018)
Discontinued
K15x
Available. Released 2026, October 02
Dimensions
A71 (2018)
148.1 x 73.8 x 7.6 mm (5.83 x 2.91 x 0.30 in)
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Weight
A71 (2018)
137 g (4.83 oz)
K15x
212 g (7.48 oz)
Build
A71 (2018)
Glass front, aluminum back, aluminum frame
K15x
Glass front, plastic frame, plastic back
SIM
A71 (2018)
Nano-SIM + Nano-SIM
K15x
Nano-SIM + Nano-SIM
Other
A71 (2018)
-
K15x
IP64 dust tight and water resistant (water splashes)
Type
A71 (2018)
IPS LCD
K15x
IPS LCD, 120Hz, 1125 nits (peak)
Size
A71 (2018)
5.2 inches, 74.5 cm2 (~68.2% screen-to-body ratio)
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Resolution
A71 (2018)
720 x 1280 pixels, 16:9 ratio (~282 ppi density)
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
OS
A71 (2018)
Android 7.1 (Nougat), , ColorOS 3.2
K15x
Android 16, ColorOS 16
Chipset
A71 (2018)
Qualcomm SDM450 Snapdragon 450 (14 nm)
K15x
Mediatek Dimensity 6300 (6 nm)
CPU
A71 (2018)
Octa-core 1.8 GHz Cortex-A53
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
A71 (2018)
Adreno 506
K15x
Mali-G57 MC2
Card slot
A71 (2018)
microSDXC (dedicated slot)
K15x
microSDXC
Internal
A71 (2018)
16GB 2GB RAM, 16GB 3GB RAM
K15x
128GB 6GB RAM, 256GB 6GB RAM
Other
A71 (2018)
eMMC 5.1
K15x
UFS 2.2
Single
A71 (2018)
13 MP, f/2.2, 1/3.1", 1.12µm, PDAF
K15x
-
Features
A71 (2018)
LED flash, HDR, panorama
K15x
LED flash, HDR, panorama
Video
A71 (2018)
1080p@30fps
K15x
1080p@30/60fps
Dual
A71 (2018)
-
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Single
A71 (2018)
5 MP, f/2.4, 1/4.0", 1.4µm
K15x
5 MP, f/2.2, 27mm (wide)
Video
A71 (2018)
K15x
1080p@30fps
Features
A71 (2018)
-
K15x
Panorama
Loudspeaker
A71 (2018)
Yes
K15x
Yes
3.5mm jack
A71 (2018)
Yes
K15x
Yes
WLAN
A71 (2018)
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
A71 (2018)
4.2, A2DP, LE
K15x
5.4, A2DP, LE, aptX HD
Positioning
A71 (2018)
GPS
K15x
GPS, GALILEO, GLONASS, QZSS
NFC
A71 (2018)
No
K15x
Yes
Radio
A71 (2018)
FM radio
K15x
No
USB
A71 (2018)
microUSB 2.0
K15x
USB Type-C 2.0, OTG
Sensors
A71 (2018)
Accelerometer, proximity, compass
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
A71 (2018)
Li-Ion 3000 mAh, non-removable
K15x
6500 mAh
Charging
A71 (2018)
-
K15x
45W wired 5W reverse wired
Colors
A71 (2018)
Gold, Black, Rose Gold
K15x
Purple, White
Models
A71 (2018)
CPH1801
K15x
PLT150
Price
A71 (2018)
About 130 EUR
K15x
About 230 EUR