Screen size
K15sWinner: 6.6"+10%
U35.9"
Quick verdict
K15s leads the measured specs 16-3.
Measured wins
K15s
16
spec wins
Overall winner
Ties
3
equal specs
U3
3
spec wins
Screen size
Technology
K15s
GSM / HSPA / LTE / 5G
U3
GSM / LTE
2G bands
K15s
GSM 850 / 900 / 1800 / 1900
U3
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
K15s
HSDPA 850 / 900 / 2100
U3
TD-SCDMA
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
USB
equal specs5G support
NFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
U3
38, 39, 40, 41
5G bands
K15s
1, 3, 5, 8, 28, 38, 40, 41, 48, 77, 78 SA/NSA
U3
-
Speed
K15s
HSPA, LTE, 5G
U3
HSPA, LTE
GPRS
K15s
-
U3
Yes
EDGE
K15s
-
U3
Yes
Announced
K15s
2026, October 02
U3
2015, January. Released 2015, April
Status
K15s
Available. Released 2026, October 02
U3
Discontinued
Dimensions
K15s
159.1 x 75.8 x 8.8 mm (6.26 x 2.98 x 0.35 in)
U3
156.8 x 81 x 8 mm (6.17 x 3.19 x 0.31 in)
Weight
K15s
205 g (7.23 oz)
U3
195 g (6.88 oz)
Build
K15s
Glass front, plastic frame, plastic back
U3
-
SIM
K15s
Nano-SIM + Nano-SIM
U3
Nano-SIM + Micro-SIM
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
U3
-
Type
K15s
AMOLED, 1B colors, 120Hz, 800 nits (typ), 1400 nits (peak)
U3
IPS LCD
Size
K15s
6.57 inches, 105.0 cm2 (~87.1% screen-to-body ratio)
U3
5.9 inches, 93.9 cm2 (~74.0% screen-to-body ratio)
Resolution
K15s
1080 x 2372 pixels (~397 ppi density)
U3
1080 x 1920 pixels, 16:9 ratio (~377 ppi density)
OS
K15s
Android 16, ColorOS 16
U3
Android 4.4.4 (KitKat), ColorOS 2
Chipset
K15s
Mediatek Dimensity 6360 Max (6 nm)
U3
Mediatek MT6752 (28 nm)
CPU
K15s
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
U3
Octa-core 1.7 GHz Cortex-A53
GPU
K15s
Mali-G57 MC2
U3
Mali-T760MP2
Card slot
K15s
microSDXC
U3
microSDHC (dedicated slot)
Internal
K15s
128GB 6GB RAM, 256GB 8GB RAM
U3
16GB 2GB RAM
Other
K15s
UFS 2.2
U3
-
Dual
K15s
50 MP, f/1.9, 25mm (wide), PDAF Auxiliary lens
U3
-
Features
K15s
LED flash, HDR, panorama
U3
LED flash, HDR, panorama
Video
K15s
1080p@30/60fps
U3
1080p@30fps
Single
K15s
-
U3
13 MP, AF
Single
K15s
8 MP, f/2.1, 25mm (wide)
U3
5 MP
Features
K15s
Panorama
U3
LED flash
Video
K15s
1080p@30fps
U3
1080p@30fps
Loudspeaker
K15s
Yes
U3
Yes
3.5mm jack
K15s
No
U3
Yes
WLAN
K15s
Wi-Fi 802.11 a/b/g/n/ac, dual-band
U3
Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
Bluetooth
K15s
5.4, A2DP, LE, aptX HD
U3
4.0, A2DP
Positioning
K15s
GPS, GALILEO, GLONASS, BDS, QZSS
U3
GPS
NFC
K15s
Yes
U3
Yes
Infrared port
K15s
Yes
U3
-
Radio
K15s
No
U3
No
USB
K15s
USB Type-C 2.0, OTG
U3
microUSB 2.0
Sensors
K15s
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
U3
Accelerometer, proximity, compass
Type
K15s
Si/C Li-Ion 8000 mAh
U3
Li-Ion 3000 mAh, non-removable
Charging
K15s
45W wired, 45W UFCS, 45W PPS, 13.5W PD Reverse wired
U3
20W wired, 75% in 30 min
Stand-by
K15s
-
U3
Up to 400 h (3G)
Talk time
K15s
-
U3
Up to 10 h (3G)
Colors
K15s
Gray, Purple
U3
White, Black
Models
K15s
PYE130
U3
-
Price
K15s
About 270 EUR
U3
-