Screen size
Y51 (2015)5.0"
Y6tWinner: 6.7"+26%
Quick verdict
Y6t leads the measured specs 16-2.
Measured wins
Y51 (2015)
2
spec wins
Ties
5
equal specs
Y6t
16
spec wins
Overall winner
Screen size
Technology
Y51 (2015)
GSM / HSPA / LTE
Y6t
GSM / HSPA / LTE / 5G
2G bands
Y51 (2015)
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Y6t
GSM 850 / 900 / 1800 / 1900
3G bands
Y51 (2015)
HSDPA 850 / 900 / 2100
Y6t
HSDPA 850 / 900 / 2100
4G bands
Y51 (2015)
LTE 850 / 900 / 1800 / 2100 / 2600 - Malaysia, LTE 900 / 1800 / 2100 - Thailand, Indonesia
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
equal specsBattery
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
1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41, 66
Speed
Y51 (2015)
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Y6t
HSPA, LTE, 5G
5G bands
Y51 (2015)
-
Y6t
1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
Announced
Y51 (2015)
2015, December. Released 2015, December
Y6t
2026, April 20
Status
Y51 (2015)
Discontinued
Y6t
Available. Released 2026, April 27
Dimensions
Y51 (2015)
143.8 x 71.7 x 7.5 mm (5.66 x 2.82 x 0.30 in)
Y6t
167.4 x 77.1 x 8.4 mm (6.59 x 3.04 x 0.33 in)
Weight
Y51 (2015)
157 g (5.54 oz)
Y6t
209 g (7.37 oz)
SIM
Y51 (2015)
Dual SIM
Y6t
Nano-SIM + Nano-SIM
Build
Y51 (2015)
-
Y6t
Glass front, plastic frame, plastic back
Other
Y51 (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
Y51 (2015)
IPS LCD
Y6t
IPS LCD, 120Hz, 1200 nits (HBM)
Size
Y51 (2015)
5.0 inches, 68.9 cm2 (~66.8% screen-to-body ratio)
Y6t
6.74 inches, 109.7 cm2 (~85.0% screen-to-body ratio)
Resolution
Y51 (2015)
540 x 960 pixels, 16:9 ratio (~220 ppi density)
Y6t
720 x 1600 pixels, 20:9 ratio (~260 ppi density)
OS
Y51 (2015)
Android 5.0.2 (Lollipop), Funtouch 2.5
Y6t
Android 16, OriginOS 6
Chipset
Y51 (2015)
Qualcomm MSM8916 Snapdragon 410 (28 nm)
Y6t
Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
CPU
Y51 (2015)
Quad-core 1.2 GHz Cortex-A53
Y6t
Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)
GPU
Y51 (2015)
Adreno 306
Y6t
Adreno 613
Card slot
Y51 (2015)
microSDXC (dedicated slot)
Y6t
microSDXC (dedicated slot)
Internal
Y51 (2015)
16GB 2GB RAM
Y6t
128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM
Other
Y51 (2015)
eMMC 4.5
Y6t
UFS 3.1
Single
Y51 (2015)
8 MP, AF
Y6t
13 MP, f/2.2, (wide), AF
Features
Y51 (2015)
LED flash, HDR, panorama
Y6t
LED flash, panorama
Video
Y51 (2015)
1080p@30fps
Y6t
1080p@30fps
Single
Y51 (2015)
5 MP
Y6t
5 MP, f/2.2, (wide)
Video
Y51 (2015)
720p@30fps
Y6t
1080p@30fps
Loudspeaker
Y51 (2015)
Yes
Y6t
Yes, with stereo speakers
3.5mm jack
Y51 (2015)
Yes
Y6t
Yes
WLAN
Y51 (2015)
Wi-Fi 802.11 b/g/n, hotspot
Y6t
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Y51 (2015)
4.0, A2DP
Y6t
5.1, A2DP, LE, aptX HD, aptX Adaptive
Positioning
Y51 (2015)
GPS, GLONASS, BDS
Y6t
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
Y51 (2015)
No
Y6t
No
Radio
Y51 (2015)
FM radio
Y6t
Unspecified
USB
Y51 (2015)
microUSB 2.0
Y6t
USB Type-C 2.0, OTG
Infrared port
Y51 (2015)
-
Y6t
Yes
Sensors
Y51 (2015)
Accelerometer, proximity, compass
Y6t
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
Y51 (2015)
Li-Ion 2350 mAh, non-removable
Y6t
Li-Ion 6500 mAh
Charging
Y51 (2015)
-
Y6t
15W wired Reverse wired
Colors
Y51 (2015)
White
Y6t
Black, Blue, Gold
Models
Y51 (2015)
Y51L, Y51, 1707, Y51A
Y6t
V2559A
Price
Y51 (2015)
About 130 EUR
Y6t
About 210 EUR