Screen size
Quick verdict
K15s leads the measured specs 14-6.
Measured wins
F5 Youth
6
spec wins
Ties
2
equal specs
K15s
14
spec wins
Overall winner
Screen size
Technology
F5 Youth
GSM / HSPA / LTE
K15s
GSM / HSPA / LTE / 5G
2G bands
F5 Youth
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
K15s
GSM 850 / 900 / 1800 / 1900
3G bands
F5 Youth
HSDPA 850 / 900 / 1900 / 2100
K15s
HSDPA 850 / 900 / 2100
4G bands
F5 Youth
1, 2, 3, 5, 7, 8, 20, 28, 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
USB
equal specs5G support
NFC
3.5mm jack
SD card
equal specsStereo speakers
K15s
1, 3, 5, 8, 28, 34, 38, 39, 40, 41, 42, 48
Speed
F5 Youth
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
K15s
HSPA, LTE, 5G
5G bands
F5 Youth
-
K15s
1, 3, 5, 8, 28, 38, 40, 41, 48, 77, 78 SA/NSA
Announced
F5 Youth
2017, November. Released 2017, December
K15s
2026, October 02
Status
F5 Youth
Discontinued
K15s
Available. Released 2026, October 02
Dimensions
F5 Youth
156.5 x 76 x 7.5 mm (6.16 x 2.99 x 0.30 in)
K15s
159.1 x 75.8 x 8.8 mm (6.26 x 2.98 x 0.35 in)
Weight
F5 Youth
152 g (5.36 oz)
K15s
205 g (7.23 oz)
Build
F5 Youth
Glass front, aluminum back, aluminum frame
K15s
Glass front, plastic frame, plastic back
SIM
F5 Youth
Nano-SIM + Nano-SIM
K15s
Nano-SIM + Nano-SIM
Other
F5 Youth
-
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
Type
F5 Youth
IPS LCD
K15s
AMOLED, 1B colors, 120Hz, 800 nits (typ), 1400 nits (peak)
Size
F5 Youth
6.0 inches, 92.9 cm2 (~78.1% screen-to-body ratio)
K15s
6.57 inches, 105.0 cm2 (~87.1% screen-to-body ratio)
Resolution
F5 Youth
1080 x 2160 pixels, 18:9 ratio (~402 ppi density)
K15s
1080 x 2372 pixels (~397 ppi density)
OS
F5 Youth
Android 7.1 (Nougat), ColorOS 3.2
K15s
Android 16, ColorOS 16
Chipset
F5 Youth
Mediatek MT6763T Helio P23 (16 nm)
K15s
Mediatek Dimensity 6360 Max (6 nm)
CPU
F5 Youth
Octa-core 2.5 GHz Cortex-A53
K15s
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
F5 Youth
Mali-G71 MP2
K15s
Mali-G57 MC2
Card slot
F5 Youth
microSDXC (dedicated slot)
K15s
microSDXC
Internal
F5 Youth
32GB 3GB RAM, 32GB 4GB RAM
K15s
128GB 6GB RAM, 256GB 8GB RAM
Other
F5 Youth
eMMC 5.1
K15s
UFS 2.2
Single
F5 Youth
13 MP, f/2.2, 28mm (wide), 1/3.32", 1.0µm, PDAF
K15s
-
Features
F5 Youth
LED flash, HDR, panorama
K15s
LED flash, HDR, panorama
Video
F5 Youth
1080p@30fps
K15s
1080p@30/60fps
Dual
F5 Youth
-
K15s
50 MP, f/1.9, 25mm (wide), PDAF Auxiliary lens
Single
F5 Youth
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
K15s
8 MP, f/2.1, 25mm (wide)
Video
F5 Youth
1080p@30fps
K15s
1080p@30fps
Features
F5 Youth
-
K15s
Panorama
Loudspeaker
F5 Youth
Yes
K15s
Yes
3.5mm jack
F5 Youth
Yes
K15s
No
WLAN
F5 Youth
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
K15s
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
F5 Youth
4.2, A2DP, LE
K15s
5.4, A2DP, LE, aptX HD
Positioning
F5 Youth
GPS
K15s
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
F5 Youth
No
K15s
Yes
Radio
F5 Youth
FM radio
K15s
No
USB
F5 Youth
microUSB 2.0, OTG
K15s
USB Type-C 2.0, OTG
Infrared port
F5 Youth
-
K15s
Yes
Sensors
F5 Youth
Fingerprint (rear-mounted), accelerometer, proximity, compass
K15s
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
F5 Youth
Li-Ion 3200 mAh, non-removable
K15s
Si/C Li-Ion 8000 mAh
Charging
F5 Youth
-
K15s
45W wired, 45W UFCS, 45W PPS, 13.5W PD Reverse wired
Colors
F5 Youth
Gold, Black
K15s
Gray, Purple
Models
F5 Youth
CPH1725
K15s
PYE130
Price
F5 Youth
About 280 EUR
K15s
About 270 EUR