Screen size
A53 (2015)5.5"
K15sWinner: 6.6"+16%
Quick verdict
K15s leads the measured specs 16-3.
Measured wins
A53 (2015)
3
spec wins
Ties
3
equal specs
K15s
16
spec wins
Overall winner
Screen size
Technology
A53 (2015)
GSM / HSPA / LTE
K15s
GSM / HSPA / LTE / 5G
2G bands
A53 (2015)
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
K15s
GSM 850 / 900 / 1800 / 1900
3G bands
A53 (2015)
HSDPA 850 / 900 / 1900 / 2100 , TD-SCDMA
K15s
HSDPA 850 / 900 / 2100
4G bands
A53 (2015)
1, 3, 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
equal specs3.5mm jack
SD card
equal specsStereo speakers
K15s
1, 3, 5, 8, 28, 34, 38, 39, 40, 41, 42, 48
Speed
A53 (2015)
HSPA, LTE
K15s
HSPA, LTE, 5G
5G bands
A53 (2015)
-
K15s
1, 3, 5, 8, 28, 38, 40, 41, 48, 77, 78 SA/NSA
Announced
A53 (2015)
2015, November. Released 2015, December
K15s
2026, October 02
Status
A53 (2015)
Discontinued
K15s
Available. Released 2026, October 02
Dimensions
A53 (2015)
153 x 77 x 7.4 mm (6.02 x 3.03 x 0.29 in)
K15s
159.1 x 75.8 x 8.8 mm (6.26 x 2.98 x 0.35 in)
Weight
A53 (2015)
165 g (5.82 oz)
K15s
205 g (7.23 oz)
SIM
A53 (2015)
Nano-SIM + Micro-SIM
K15s
Nano-SIM + Nano-SIM
Build
A53 (2015)
-
K15s
Glass front, plastic frame, plastic back
Other
A53 (2015)
-
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
A53 (2015)
IPS LCD
K15s
AMOLED, 1B colors, 120Hz, 800 nits (typ), 1400 nits (peak)
Size
A53 (2015)
5.5 inches, 83.4 cm2 (~70.8% screen-to-body ratio)
K15s
6.57 inches, 105.0 cm2 (~87.1% screen-to-body ratio)
Resolution
A53 (2015)
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
K15s
1080 x 2372 pixels (~397 ppi density)
OS
A53 (2015)
Android 5.1 (Lollipop), ColorOS 2.1
K15s
Android 16, ColorOS 16
Chipset
A53 (2015)
Qualcomm MSM8939v2 Snapdragon 616 (28 nm)
K15s
Mediatek Dimensity 6360 Max (6 nm)
CPU
A53 (2015)
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
K15s
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
A53 (2015)
Adreno 405
K15s
Mali-G57 MC2
Card slot
A53 (2015)
microSDXC (uses shared SIM slot)
K15s
microSDXC
Internal
A53 (2015)
16GB 2GB RAM
K15s
128GB 6GB RAM, 256GB 8GB RAM
Other
A53 (2015)
eMMC 4.5
K15s
UFS 2.2
Single
A53 (2015)
13 MP, AF
K15s
-
Features
A53 (2015)
LED flash, HDR, panorama
K15s
LED flash, HDR, panorama
Video
A53 (2015)
1080p@30fps
K15s
1080p@30/60fps
Dual
A53 (2015)
-
K15s
50 MP, f/1.9, 25mm (wide), PDAF Auxiliary lens
Single
A53 (2015)
5 MP
K15s
8 MP, f/2.1, 25mm (wide)
Video
A53 (2015)
K15s
1080p@30fps
Features
A53 (2015)
-
K15s
Panorama
Loudspeaker
A53 (2015)
Yes
K15s
Yes
3.5mm jack
A53 (2015)
Yes
K15s
No
WLAN
A53 (2015)
Wi-Fi 802.11 b/g/n
K15s
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
A53 (2015)
4.0, A2DP
K15s
5.4, A2DP, LE, aptX HD
Positioning
A53 (2015)
GPS
K15s
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
A53 (2015)
Yes
K15s
Yes
Radio
A53 (2015)
FM radio
K15s
No
USB
A53 (2015)
microUSB 2.0, OTG
K15s
USB Type-C 2.0, OTG
Infrared port
A53 (2015)
-
K15s
Yes
Sensors
A53 (2015)
Accelerometer, proximity, compass
K15s
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
A53 (2015)
Li-Ion 3075 mAh, non-removable
K15s
Si/C Li-Ion 8000 mAh
Charging
A53 (2015)
-
K15s
45W wired, 45W UFCS, 45W PPS, 13.5W PD Reverse wired
Colors
A53 (2015)
White/Gold
K15s
Gray, Purple
Price
A53 (2015)
About 200 EUR
K15s
About 270 EUR
Models
A53 (2015)
-
K15s
PYE130