Screen size
K15sWinner: 6.6"+39%
R1001 Joy4.0"
Quick verdict
K15s leads the measured specs 18-2.
Measured wins
K15s
18
spec wins
Overall winner
Ties
2
equal specs
R1001 Joy
2
spec wins
Screen size
Technology
K15s
GSM / HSPA / LTE / 5G
R1001 Joy
GSM / HSPA
2G bands
K15s
GSM 850 / 900 / 1800 / 1900
R1001 Joy
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
K15s
HSDPA 850 / 900 / 2100
R1001 Joy
HSDPA 2100
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
3.5mm jack
SD card
equal specsStereo speakers
R1001 Joy
-
5G bands
K15s
1, 3, 5, 8, 28, 38, 40, 41, 48, 77, 78 SA/NSA
R1001 Joy
-
Speed
K15s
HSPA, LTE, 5G
R1001 Joy
HSPA
Announced
K15s
2026, October 02
R1001 Joy
2014, May. Released 2014, May
Status
K15s
Available. Released 2026, October 02
R1001 Joy
Discontinued
Dimensions
K15s
159.1 x 75.8 x 8.8 mm (6.26 x 2.98 x 0.35 in)
R1001 Joy
124 x 63 x 9.9 mm (4.88 x 2.48 x 0.39 in)
Weight
K15s
205 g (7.23 oz)
R1001 Joy
125 g (4.41 oz)
Build
K15s
Glass front, plastic frame, plastic back
R1001 Joy
-
SIM
K15s
Nano-SIM + Nano-SIM
R1001 Joy
Dual SIM (Mini-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
R1001 Joy
-
Type
K15s
AMOLED, 1B colors, 120Hz, 800 nits (typ), 1400 nits (peak)
R1001 Joy
TFT
Size
K15s
6.57 inches, 105.0 cm2 (~87.1% screen-to-body ratio)
R1001 Joy
4.0 inches, 45.5 cm2 (~58.3% screen-to-body ratio)
Resolution
K15s
1080 x 2372 pixels (~397 ppi density)
R1001 Joy
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
K15s
Android 16, ColorOS 16
R1001 Joy
Android 4.2.1 (Jelly Bean)
Chipset
K15s
Mediatek Dimensity 6360 Max (6 nm)
R1001 Joy
Mediatek MT6572 (28 nm)
CPU
K15s
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
R1001 Joy
Dual-core 1.3 GHz Cortex-A7
GPU
K15s
Mali-G57 MC2
R1001 Joy
Mali-400
Card slot
K15s
microSDXC
R1001 Joy
microSDHC (dedicated slot)
Internal
K15s
128GB 6GB RAM, 256GB 8GB RAM
R1001 Joy
4GB 512MB RAM
Other
K15s
UFS 2.2
R1001 Joy
-
Dual
K15s
50 MP, f/1.9, 25mm (wide), PDAF Auxiliary lens
R1001 Joy
-
Features
K15s
LED flash, HDR, panorama
R1001 Joy
LED flash
Video
K15s
1080p@30/60fps
R1001 Joy
720p@30fps
Single
K15s
-
R1001 Joy
3.15 MP
Single
K15s
8 MP, f/2.1, 25mm (wide)
R1001 Joy
VGA
Features
K15s
Panorama
R1001 Joy
-
Video
K15s
1080p@30fps
R1001 Joy
Loudspeaker
K15s
Yes
R1001 Joy
Yes
3.5mm jack
K15s
No
R1001 Joy
Yes
WLAN
K15s
Wi-Fi 802.11 a/b/g/n/ac, dual-band
R1001 Joy
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth
K15s
5.4, A2DP, LE, aptX HD
R1001 Joy
4.0, A2DP
Positioning
K15s
GPS, GALILEO, GLONASS, BDS, QZSS
R1001 Joy
GPS
NFC
K15s
Yes
R1001 Joy
No
Infrared port
K15s
Yes
R1001 Joy
-
Radio
K15s
No
R1001 Joy
FM radio
USB
K15s
USB Type-C 2.0, OTG
R1001 Joy
microUSB 2.0
Sensors
K15s
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
R1001 Joy
Accelerometer, proximity
Type
K15s
Si/C Li-Ion 8000 mAh
R1001 Joy
Li-Ion 1700 mAh, removable
Charging
K15s
45W wired, 45W UFCS, 45W PPS, 13.5W PD Reverse wired
R1001 Joy
-
Stand-by
K15s
-
R1001 Joy
Up to 280 h
Talk time
K15s
-
R1001 Joy
Up to 7 h
Colors
K15s
Gray, Purple
R1001 Joy
White, Black
Models
K15s
PYE130
R1001 Joy
R1001
Price
K15s
About 270 EUR
R1001 Joy
About 100 EUR