Screen size
K15xWinner: 6.8"+26%
R75.0"
Quick verdict
K15x leads the measured specs 13-5.
Measured wins
K15x
13
spec wins
Overall winner
Ties
4
equal specs
R7
5
spec wins
Screen size
Technology
K15x
GSM / HSPA / LTE / 5G
R7
GSM / HSPA / LTE
2G bands
K15x
GSM 850 / 900 / 1800 / 1900
R7
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
K15x
HSDPA 850 / 900 / 2100
R7
HSDPA 850 / 900 / 1900 / 2100 - Global, Taiwan, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA
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
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
NFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
R7
1, 3, 7, 8, 40 - Global, 1, 3, 5, 7, 8, 28, 40 - Taiwan, 1, 3, 4, 7, 17, 20 - USA
5G bands
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
R7
-
Speed
K15x
HSPA, LTE, 5G
R7
HSPA, LTE Cat4 150/50 Mbps
Announced
K15x
2026, October 02
R7
2015, May. Released 2015, May
Status
K15x
Available. Released 2026, October 02
R7
Discontinued
Dimensions
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
R7
143 x 71 x 6.3 mm (5.63 x 2.80 x 0.25 in)
Weight
K15x
212 g (7.48 oz)
R7
147 g (5.19 oz)
Build
K15x
Glass front, plastic frame, plastic back
R7
-
SIM
K15x
Nano-SIM + Nano-SIM
R7
Nano-SIM + Micro-SIM
Other
K15x
IP64 dust tight and water resistant (water splashes)
R7
-
Type
K15x
IPS LCD, 120Hz, 1125 nits (peak)
R7
AMOLED
Size
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
R7
5.0 inches, 67.7 cm2 (~66.7% screen-to-body ratio)
Resolution
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
R7
1080 x 1920 pixels, 16:9 ratio (~445 ppi density)
Protection
K15x
-
R7
Corning Gorilla Glass 3
OS
K15x
Android 16, ColorOS 16
R7
Android 4.4.2 (KitKat), ColorOS 2.1
Chipset
K15x
Mediatek Dimensity 6300 (6 nm)
R7
Qualcomm MSM8939 Snapdragon 615 (28 nm)
CPU
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
R7
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
GPU
K15x
Mali-G57 MC2
R7
Adreno 405
Card slot
K15x
microSDXC
R7
microSDXC (uses shared SIM slot)
Internal
K15x
128GB 6GB RAM, 256GB 6GB RAM
R7
16GB 3GB RAM
Other
K15x
UFS 2.2
R7
eMMC 4.5
Dual
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
R7
-
Features
K15x
LED flash, HDR, panorama
R7
LED flash, panorama, HDR, Schneider-Kreuznach optics
Video
K15x
1080p@30/60fps
R7
1080p@30fps
Single
K15x
-
R7
13 MP, f/2.2, PDAF
Single
K15x
5 MP, f/2.2, 27mm (wide)
R7
8 MP, f/2.4
Features
K15x
Panorama
R7
-
Video
K15x
1080p@30fps
R7
Loudspeaker
K15x
Yes
R7
Yes
3.5mm jack
K15x
Yes
R7
Yes
WLAN
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
R7
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth
K15x
5.4, A2DP, LE, aptX HD
R7
4.0, A2DP
Positioning
K15x
GPS, GALILEO, GLONASS, QZSS
R7
GPS, GLONASS
NFC
K15x
Yes
R7
No
Radio
K15x
No
R7
No
USB
K15x
USB Type-C 2.0, OTG
R7
microUSB 2.0, OTG
Sensors
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
R7
Accelerometer, proximity, compass
Type
K15x
6500 mAh
R7
Li-Po 2320 mAh, non-removable
Charging
K15x
45W wired 5W reverse wired
R7
20W wired, 75% in 30 min
Colors
K15x
Purple, White
R7
Golden, Silver
Models
K15x
PLT150
R7
R7f
Price
K15x
About 230 EUR
R7
About 360 EUR