Screen size
K15xWinner: 6.8"+23%
R55.2"
Quick verdict
K15x leads the measured specs 15-4.
Measured wins
K15x
15
spec wins
Overall winner
Ties
3
equal specs
R5
4
spec wins
Screen size
Technology
K15x
GSM / HSPA / LTE / 5G
R5
GSM / HSPA / LTE
2G bands
K15x
GSM 850 / 900 / 1800 / 1900
R5
GSM 850 / 900 / 1800 / 1900
3G bands
K15x
HSDPA 850 / 900 / 2100
R5
HSDPA 850 / 900 / 1700 / 1900 / 2100
4G bands
K15x
1, 3, 5, 8, 28, 34, 38, 39, 40, 41
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
SD card
Stereo speakers
R5
1, 3, 4, 7, 8, 17, 20, 28, 40
5G bands
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
R5
-
Speed
K15x
HSPA, LTE, 5G
R5
HSPA, LTE Cat4 150/50 Mbps
Announced
K15x
2026, October 02
R5
2014, October. Released 2014, December
Status
K15x
Available. Released 2026, October 02
R5
Discontinued
Dimensions
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
R5
148.9 x 74.5 x 4.9 mm (5.86 x 2.93 x 0.19 in)
Weight
K15x
212 g (7.48 oz)
R5
155 g (5.47 oz)
Build
K15x
Glass front, plastic frame, plastic back
R5
-
SIM
K15x
Nano-SIM + Nano-SIM
R5
Micro-SIM
Other
K15x
IP64 dust tight and water resistant (water splashes)
R5
-
Type
K15x
IPS LCD, 120Hz, 1125 nits (peak)
R5
AMOLED
Size
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
R5
5.2 inches, 74.9 cm2 (~67.5% screen-to-body ratio)
Resolution
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
R5
1080 x 1920 pixels, 16:9 ratio (~423 ppi density)
Protection
K15x
-
R5
Corning Gorilla Glass 3
OS
K15x
Android 16, ColorOS 16
R5
Android 4.4.4 (KitKat), ColorOS 2
Chipset
K15x
Mediatek Dimensity 6300 (6 nm)
R5
Qualcomm MSM8939 Snapdragon 615 (28 nm)
CPU
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
R5
Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
GPU
K15x
Mali-G57 MC2
R5
Adreno 405
Card slot
K15x
microSDXC
R5
No
Internal
K15x
128GB 6GB RAM, 256GB 6GB RAM
R5
16GB 2GB RAM
Other
K15x
UFS 2.2
R5
eMMC 4.5
Dual
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
R5
-
Features
K15x
LED flash, HDR, panorama
R5
LED flash, panorama, HDR
Video
K15x
1080p@30/60fps
R5
1080p@60fps, 720p@120fps
Single
K15x
-
R5
13 MP, f/2.0, 1/3.1", 1.12µm, AF
Single
K15x
5 MP, f/2.2, 27mm (wide)
R5
5 MP, f/2.5
Features
K15x
Panorama
R5
-
Video
K15x
1080p@30fps
R5
Loudspeaker
K15x
Yes
R5
Yes
3.5mm jack
K15x
Yes
R5
No
WLAN
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
R5
Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, hotspot
Bluetooth
K15x
5.4, A2DP, LE, aptX HD
R5
4.0, A2DP
Positioning
K15x
GPS, GALILEO, GLONASS, QZSS
R5
GPS, GLONASS
NFC
K15x
Yes
R5
No
Radio
K15x
No
R5
No
USB
K15x
USB Type-C 2.0, OTG
R5
microUSB 2.0, OTG
Sensors
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
R5
Accelerometer, proximity, compass
Type
K15x
6500 mAh
R5
Li-Po 2000 mAh, non-removable
Charging
K15x
45W wired 5W reverse wired
R5
20W wired, 75% in 30 min
Colors
K15x
Purple, White
R5
Silver, Gold
Models
K15x
PLT150
R5
R8106
Price
K15x
About 230 EUR
R5
About 400 EUR