Screen size
K15sWinner: 6.6"+78%
Watch X1.4"
Quick verdict
K15s leads the measured specs 18-1.
Measured wins
K15s
18
spec wins
Overall winner
Ties
3
equal specs
Watch X
1
spec wins
Screen size
Technology
K15s
GSM / HSPA / LTE / 5G
Watch X
No cellular connectivity
2G bands
K15s
GSM 850 / 900 / 1800 / 1900
Watch X
N/A
3G bands
K15s
HSDPA 850 / 900 / 2100
Watch X
N/A
4G bands
K15s
1, 3, 5, 8, 28, 34, 38, 39, 40, 41, 42, 48
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
equal specsSD card
Stereo speakers
Watch X
N/A
5G bands
K15s
1, 3, 5, 8, 28, 38, 40, 41, 48, 77, 78 SA/NSA
Watch X
-
Speed
K15s
HSPA, LTE, 5G
Watch X
No
GPRS
K15s
-
Watch X
No
EDGE
K15s
-
Watch X
No
Announced
K15s
2026, October 02
Watch X
2024, February 29
Status
K15s
Available. Released 2026, October 02
Watch X
Available. Released 2024, March 04
Dimensions
K15s
159.1 x 75.8 x 8.8 mm (6.26 x 2.98 x 0.35 in)
Watch X
47 x 46.6 x 12.1 mm (1.85 x 1.83 x 0.48 in)
Weight
K15s
205 g (7.23 oz)
Watch X
49 g (1.73 oz)
Build
K15s
Glass front, plastic frame, plastic back
Watch X
Sapphire crystal front, stainless steel frame, plastic back
SIM
K15s
Nano-SIM + Nano-SIM
Watch X
No
Other
K15s
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) Drop resistant up to 1.8m
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
K15s
AMOLED, 1B colors, 120Hz, 800 nits (typ), 1400 nits (peak)
Watch X
AMOLED, 1000 nits (HBM)
Size
K15s
6.57 inches, 105.0 cm2 (~87.1% screen-to-body ratio)
Watch X
1.43 inches
Resolution
K15s
1080 x 2372 pixels (~397 ppi density)
Watch X
466 x 466 pixels (~326 ppi density)
Protection
K15s
-
Watch X
Sapphire crystal glass
OS
K15s
Android 16, ColorOS 16
Watch X
Android Wear OS 4
Chipset
K15s
Mediatek Dimensity 6360 Max (6 nm)
Watch X
Qualcomm Snapdragon W5 Gen 1 (4 nm)
CPU
K15s
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Watch X
-
GPU
K15s
Mali-G57 MC2
Watch X
-
Card slot
K15s
microSDXC
Watch X
No
Internal
K15s
128GB 6GB RAM, 256GB 8GB RAM
Watch X
32GB 2GB RAM
Other
K15s
UFS 2.2
Watch X
eMMC
Dual
K15s
50 MP, f/1.9, 25mm (wide), PDAF Auxiliary lens
Watch X
-
Features
K15s
LED flash, HDR, panorama
Watch X
-
Video
K15s
1080p@30/60fps
Watch X
-
Single
K15s
8 MP, f/2.1, 25mm (wide)
Watch X
-
Features
K15s
Panorama
Watch X
-
Video
K15s
1080p@30fps
Watch X
-
Loudspeaker
K15s
Yes
Watch X
Yes
3.5mm jack
K15s
No
Watch X
No
WLAN
K15s
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Watch X
Wi-Fi 802.11 a/b/g/n, dual-band
Bluetooth
K15s
5.4, A2DP, LE, aptX HD
Watch X
5.0, A2DP, LE
Positioning
K15s
GPS, GALILEO, GLONASS, BDS, QZSS
Watch X
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
NFC
K15s
Yes
Watch X
Yes
Infrared port
K15s
Yes
Watch X
-
Radio
K15s
No
Watch X
No
USB
K15s
USB Type-C 2.0, OTG
Watch X
No
Sensors
K15s
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Watch X
Accelerometer, gyro, barometer, compass, heart rate, SpO2
Type
K15s
Si/C Li-Ion 8000 mAh
Watch X
500 mAh
Charging
K15s
45W wired, 45W UFCS, 45W PPS, 13.5W PD Reverse wired
Watch X
7.5W wired
Colors
K15s
Gray, Purple
Watch X
Platinum Black, Brown
Models
K15s
PYE130
Watch X
OWWE231
Price
K15s
About 270 EUR
Watch X
About 360 EUR
Other
K15s
-
Watch X
No