Screen size
K15xWinner: 6.8"+4.7%
R11s Plus6.4"
Quick verdict
K15x leads the measured specs 12-6.
Measured wins
K15x
12
spec wins
Overall winner
Ties
4
equal specs
R11s Plus
6
spec wins
Screen size
Technology
K15x
GSM / HSPA / LTE / 5G
R11s Plus
GSM / CDMA / HSPA / EVDO / LTE
2G bands
K15x
GSM 850 / 900 / 1800 / 1900
R11s Plus
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2, CDMA 800
3G bands
K15x
HSDPA 850 / 900 / 2100
R11s Plus
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO & TD-SCDMA
4G bands
K15x
1, 3, 5, 8, 28, 34, 38, 39, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
Main 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
R11s Plus
1, 2, 3, 4, 5, 8, 34, 38, 39, 40, 41 - R11s Plus, 1, 2, 3, 4, 5, 7, 8, 12, 17, 34, 38, 39, 40, 41 - R11s Plus t
5G bands
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
R11s Plus
-
Speed
K15x
HSPA, LTE, 5G
R11s Plus
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
K15x
2026, October 02
R11s Plus
2017, November. Released 2017, November
Status
K15x
Available. Released 2026, October 02
R11s Plus
Discontinued
Dimensions
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
R11s Plus
164.8 x 80.2 x 7.3 mm (6.49 x 3.16 x 0.29 in)
Weight
K15x
212 g (7.48 oz)
R11s Plus
182 g (6.42 oz)
Build
K15x
Glass front, plastic frame, plastic back
R11s Plus
Glass front (Gorilla Glass 5), aluminum back, aluminum frame
SIM
K15x
Nano-SIM + Nano-SIM
R11s Plus
Nano-SIM + Nano-SIM
Other
K15x
IP64 dust tight and water resistant (water splashes)
R11s Plus
-
Type
K15x
IPS LCD, 120Hz, 1125 nits (peak)
R11s Plus
AMOLED
Size
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
R11s Plus
6.43 inches, 106.7 cm2 (~80.7% screen-to-body ratio)
Resolution
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
R11s Plus
1080 x 2160 pixels, 18:9 ratio (~376 ppi density)
Protection
K15x
-
R11s Plus
Corning Gorilla Glass 5
OS
K15x
Android 16, ColorOS 16
R11s Plus
Android 7.1.1 (Nougat), ColorOS 3.2
Chipset
K15x
Mediatek Dimensity 6300 (6 nm)
R11s Plus
Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
R11s Plus
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU
K15x
Mali-G57 MC2
R11s Plus
Adreno 512
Card slot
K15x
microSDXC
R11s Plus
microSDXC (uses shared SIM slot)
Internal
K15x
128GB 6GB RAM, 256GB 6GB RAM
R11s Plus
64GB 6GB RAM
Other
K15x
UFS 2.2
R11s Plus
eMMC 5.1
Dual
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
R11s Plus
16 MP, f/1.7, 1/2.8", 1.12µm, PDAF 20 MP, f/1.7, 1/2.8", 1.0µm, AF
Features
K15x
LED flash, HDR, panorama
R11s Plus
LED flash, HDR, panorama
Video
K15x
1080p@30/60fps
R11s Plus
4K@30fps, 1080p@30fps
Single
K15x
5 MP, f/2.2, 27mm (wide)
R11s Plus
20 MP, f/2.0, (wide), 1/2.8", 1.0µm
Features
K15x
Panorama
R11s Plus
-
Video
K15x
1080p@30fps
R11s Plus
1080p@30fps
Loudspeaker
K15x
Yes
R11s Plus
Yes
3.5mm jack
K15x
Yes
R11s Plus
Yes
WLAN
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
R11s Plus
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
K15x
5.4, A2DP, LE, aptX HD
R11s Plus
4.2, A2DP, LE, EDR
Positioning
K15x
GPS, GALILEO, GLONASS, QZSS
R11s Plus
GPS, GLONASS
NFC
K15x
Yes
R11s Plus
No
Radio
K15x
No
R11s Plus
No
USB
K15x
USB Type-C 2.0, OTG
R11s Plus
microUSB 2.0, OTG
Sensors
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
R11s Plus
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
K15x
6500 mAh
R11s Plus
Li-Po 4000 mAh, non-removable
Charging
K15x
45W wired 5W reverse wired
R11s Plus
20W wired
Colors
K15x
Purple, White
R11s Plus
Black, Champagne
Models
K15x
PLT150
R11s Plus
CPH1721
Price
K15x
About 230 EUR
R11s Plus
About 580 EUR