Screen size
K15xWinner: 6.8"+79%
Watch X1.4"
Quick verdict
K15x leads the measured specs 17-3.
Measured wins
K15x
17
spec wins
Overall winner
Ties
2
equal specs
Watch X
3
spec wins
Screen size
Technology
K15x
GSM / HSPA / LTE / 5G
Watch X
No cellular connectivity
2G bands
K15x
GSM 850 / 900 / 1800 / 1900
Watch X
N/A
3G bands
K15x
HSDPA 850 / 900 / 2100
Watch X
N/A
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
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
5G support
NFC
equal specs3.5mm jack
SD card
Stereo speakers
Watch X
N/A
5G bands
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
Watch X
-
Speed
K15x
HSPA, LTE, 5G
Watch X
No
GPRS
K15x
-
Watch X
No
EDGE
K15x
-
Watch X
No
Announced
K15x
2026, October 02
Watch X
2024, February 29
Status
K15x
Available. Released 2026, October 02
Watch X
Available. Released 2024, March 04
Dimensions
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Watch X
47 x 46.6 x 12.1 mm (1.85 x 1.83 x 0.48 in)
Weight
K15x
212 g (7.48 oz)
Watch X
49 g (1.73 oz)
Build
K15x
Glass front, plastic frame, plastic back
Watch X
Sapphire crystal front, stainless steel frame, plastic back
SIM
K15x
Nano-SIM + Nano-SIM
Watch X
No
Other
K15x
IP64 dust tight and water resistant (water splashes)
Watch X
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) MIL-STD-810H compliant Waterproof (5ATM) Compatible with standard 22mm straps
Type
K15x
IPS LCD, 120Hz, 1125 nits (peak)
Watch X
AMOLED, 1000 nits (HBM)
Size
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Watch X
1.43 inches
Resolution
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Watch X
466 x 466 pixels (~326 ppi density)
Protection
K15x
-
Watch X
Sapphire crystal glass
OS
K15x
Android 16, ColorOS 16
Watch X
Android Wear OS 4
Chipset
K15x
Mediatek Dimensity 6300 (6 nm)
Watch X
Qualcomm Snapdragon W5 Gen 1 (4 nm)
CPU
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Watch X
-
GPU
K15x
Mali-G57 MC2
Watch X
-
Card slot
K15x
microSDXC
Watch X
No
Internal
K15x
128GB 6GB RAM, 256GB 6GB RAM
Watch X
32GB 2GB RAM
Other
K15x
UFS 2.2
Watch X
eMMC
Dual
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Watch X
-
Features
K15x
LED flash, HDR, panorama
Watch X
-
Video
K15x
1080p@30/60fps
Watch X
-
Single
K15x
5 MP, f/2.2, 27mm (wide)
Watch X
-
Features
K15x
Panorama
Watch X
-
Video
K15x
1080p@30fps
Watch X
-
Loudspeaker
K15x
Yes
Watch X
Yes
3.5mm jack
K15x
Yes
Watch X
No
WLAN
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Watch X
Wi-Fi 802.11 a/b/g/n, dual-band
Bluetooth
K15x
5.4, A2DP, LE, aptX HD
Watch X
5.0, A2DP, LE
Positioning
K15x
GPS, GALILEO, GLONASS, QZSS
Watch X
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
NFC
K15x
Yes
Watch X
Yes
Radio
K15x
No
Watch X
No
USB
K15x
USB Type-C 2.0, OTG
Watch X
No
Sensors
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
Watch X
Accelerometer, gyro, barometer, compass, heart rate, SpO2
Type
K15x
6500 mAh
Watch X
500 mAh
Charging
K15x
45W wired 5W reverse wired
Watch X
7.5W wired
Colors
K15x
Purple, White
Watch X
Platinum Black, Brown
Models
K15x
PLT150
Watch X
OWWE231
Price
K15x
About 230 EUR
Watch X
About 360 EUR
Other
K15x
-
Watch X
No