Screen size
Y15S (2015)4.5"
Y6tWinner: 6.7"+33%
Quick verdict
Y6t leads the measured specs 18-1.
Measured wins
Y15S (2015)
1
spec wins
Ties
4
equal specs
Y6t
18
spec wins
Overall winner
Screen size
Technology
Y15S (2015)
GSM / HSPA
Y6t
GSM / HSPA / LTE / 5G
2G bands
Y15S (2015)
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Y6t
GSM 850 / 900 / 1800 / 1900
3G bands
Y15S (2015)
HSDPA 900 / 2100
Y6t
HSDPA 850 / 900 / 2100
Speed
Y15S (2015)
HSPA
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
equal specsSD card
equal specsStereo speakers
Y6t
HSPA, LTE, 5G
4G bands
Y15S (2015)
-
Y6t
1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41, 66
5G bands
Y15S (2015)
-
Y6t
1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
Announced
Y15S (2015)
2015, August. Released 2015, August
Y6t
2026, April 20
Status
Y15S (2015)
Discontinued
Y6t
Available. Released 2026, April 27
Dimensions
Y15S (2015)
131.4 x 66.2 x 9 mm (5.17 x 2.61 x 0.35 in)
Y6t
167.4 x 77.1 x 8.4 mm (6.59 x 3.04 x 0.33 in)
Weight
Y15S (2015)
130 g (4.59 oz)
Y6t
209 g (7.37 oz)
SIM
Y15S (2015)
Dual SIM (Micro-SIM, dual stand-by)
Y6t
Nano-SIM + Nano-SIM
Build
Y15S (2015)
-
Y6t
Glass front, plastic frame, plastic back
Other
Y15S (2015)
-
Y6t
IP65 dust tight and water resistant (low pressure water jets) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Type
Y15S (2015)
IPS LCD
Y6t
IPS LCD, 120Hz, 1200 nits (HBM)
Size
Y15S (2015)
4.5 inches, 55.8 cm2 (~64.1% screen-to-body ratio)
Y6t
6.74 inches, 109.7 cm2 (~85.0% screen-to-body ratio)
Resolution
Y15S (2015)
480 x 854 pixels, 16:9 ratio (~218 ppi density)
Y6t
720 x 1600 pixels, 20:9 ratio (~260 ppi density)
OS
Y15S (2015)
Android 5.1 (Lollipop)
Y6t
Android 16, OriginOS 6
Chipset
Y15S (2015)
Mediatek MT6580 (28 nm)
Y6t
Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
CPU
Y15S (2015)
Quad-core 1.3 GHz Cortex-A7
Y6t
Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)
GPU
Y15S (2015)
Mali-400MP2
Y6t
Adreno 613
Card slot
Y15S (2015)
microSDXC (dedicated slot)
Y6t
microSDXC (dedicated slot)
Internal
Y15S (2015)
8GB 1GB RAM
Y6t
128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM
Other
Y15S (2015)
-
Y6t
UFS 3.1
Single
Y15S (2015)
5 MP, AF
Y6t
13 MP, f/2.2, (wide), AF
Features
Y15S (2015)
LED flash, HDR, panorama
Y6t
LED flash, panorama
Video
Y15S (2015)
1080p@30fps
Y6t
1080p@30fps
Single
Y15S (2015)
2 MP
Y6t
5 MP, f/2.2, (wide)
Video
Y15S (2015)
Y6t
1080p@30fps
Loudspeaker
Y15S (2015)
Yes
Y6t
Yes, with stereo speakers
3.5mm jack
Y15S (2015)
Yes
Y6t
Yes
WLAN
Y15S (2015)
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Y6t
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Y15S (2015)
4.0, A2DP, EDR
Y6t
5.1, A2DP, LE, aptX HD, aptX Adaptive
Positioning
Y15S (2015)
GPS
Y6t
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
Y15S (2015)
No
Y6t
No
Infrared port
Y15S (2015)
Yes
Y6t
Yes
Radio
Y15S (2015)
FM radio
Y6t
Unspecified
USB
Y15S (2015)
microUSB 2.0, OTG
Y6t
USB Type-C 2.0, OTG
Sensors
Y15S (2015)
Accelerometer, proximity, compass
Y6t
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
Y15S (2015)
1900 mAh, removable
Y6t
Li-Ion 6500 mAh
Stand-by
Y15S (2015)
Up to 410 h (2G) / Up to 410 h (3G)
Y6t
-
Talk time
Y15S (2015)
Up to 10 h (2G) / Up to 8 h (3G)
Y6t
-
Music play
Y15S (2015)
Up to 45 h
Y6t
-
Charging
Y15S (2015)
-
Y6t
15W wired Reverse wired
Colors
Y15S (2015)
White, Black
Y6t
Black, Blue, Gold
Models
Y15S (2015)
Y15S
Y6t
V2559A
SAR
Y15S (2015)
0.62 W/kg (head) 0.59 W/kg (body)
Y6t
-
SAR EU
Y15S (2015)
0.76 W/kg (head) 0.73 W/kg (body)
Y6t
-
Price
Y15S (2015)
-
Y6t
About 210 EUR