Screen size
K15xWinner: 6.8"+7%
R156.3"
Quick verdict
K15x leads the measured specs 12-6.
Measured wins
K15x
12
spec wins
Overall winner
Ties
4
equal specs
R15
6
spec wins
Screen size
Technology
K15x
GSM / HSPA / LTE / 5G
R15
GSM / CDMA / HSPA / LTE
2G bands
K15x
GSM 850 / 900 / 1800 / 1900
R15
GSM 850 / 900 / 1800 / 1900 , CDMA 800 & TD-SCDMA
3G bands
K15x
HSDPA 850 / 900 / 2100
R15
HSDPA 850 / 900 / 1700(AWS) / 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
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
R15
1, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41
5G bands
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
R15
-
Speed
K15x
HSPA, LTE, 5G
R15
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat13 600/100 Mbps
Announced
K15x
2026, October 02
R15
2018, March. Released 2018, April
Status
K15x
Available. Released 2026, October 02
R15
Discontinued
Dimensions
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
R15
155.1 x 75.2 x 7.4 mm (6.11 x 2.96 x 0.29 in)
Weight
K15x
212 g (7.48 oz)
R15
175 g (6.17 oz)
Build
K15x
Glass front, plastic frame, plastic back
R15
Glass front (Gorilla Glass 5), glass back, aluminum frame
SIM
K15x
Nano-SIM + Nano-SIM
R15
Nano-SIM + Nano-SIM
Other
K15x
IP64 dust tight and water resistant (water splashes)
R15
-
Type
K15x
IPS LCD, 120Hz, 1125 nits (peak)
R15
AMOLED
Size
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
R15
6.28 inches, 98.9 cm2 (~84.8% screen-to-body ratio)
Resolution
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
R15
1080 x 2280 pixels, 19:9 ratio (~401 ppi density)
Protection
K15x
-
R15
Corning Gorilla Glass 5
OS
K15x
Android 16, ColorOS 16
R15
Android 8.1 (Oreo), ColorOS 5
Chipset
K15x
Mediatek Dimensity 6300 (6 nm)
R15
Mediatek MT6771 Helio P60 (12 nm)
CPU
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
R15
Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU
K15x
Mali-G57 MC2
R15
Mali-G72 MP3
Card slot
K15x
microSDXC
R15
microSDXC (uses shared SIM slot)
Internal
K15x
128GB 6GB RAM, 256GB 6GB RAM
R15
128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
Other
K15x
UFS 2.2
R15
eMMC 5.1
Dual
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
R15
16 MP, f/1.7, 1/2.6", 1.22µm, PDAF Auxiliary lens
Features
K15x
LED flash, HDR, panorama
R15
LED flash, HDR, panorama
Video
K15x
1080p@30/60fps
R15
4K@30fps, 1080p@30fps
Single
K15x
5 MP, f/2.2, 27mm (wide)
R15
20 MP, f/2.0, (wide), 1/2.8", 1.0µm
Features
K15x
Panorama
R15
-
Video
K15x
1080p@30fps
R15
1080p@30fps
Loudspeaker
K15x
Yes
R15
Yes
3.5mm jack
K15x
Yes
R15
Yes
WLAN
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
R15
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
K15x
5.4, A2DP, LE, aptX HD
R15
4.2, A2DP, LE, EDR
Positioning
K15x
GPS, GALILEO, GLONASS, QZSS
R15
GPS, GLONASS
NFC
K15x
Yes
R15
No
Radio
K15x
No
R15
No
USB
K15x
USB Type-C 2.0, OTG
R15
microUSB 2.0, OTG
Sensors
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
R15
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
K15x
6500 mAh
R15
Li-Po 3450 mAh, non-removable
Charging
K15x
45W wired 5W reverse wired
R15
20W wired
Colors
K15x
Purple, White
R15
Hot Red, Snow White, Star Purple, Fantasy Pink
Models
K15x
PLT150
R15
PACM00, CPH1835, PACT00, PAAT00
Price
K15x
About 230 EUR
R15
About 460 EUR