Screen size
Smart 10 HDWinner: 6.6"+17%
Zero 45.5"
Quick verdict
Smart 10 HD and Zero 4 are close on the measured specs.
Measured wins
Smart 10 HD
7
spec wins
Ties
6
equal specs
Zero 4
7
spec wins
Screen size
Technology
Smart 10 HD
GSM / HSPA / LTE
Zero 4
GSM / HSPA / LTE
2G bands
Smart 10 HD
GSM 850 / 900 / 1800 / 1900
Zero 4
GSM 850 / 900 / 1800 / 1900
3G bands
Smart 10 HD
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Zero 4
HSDPA 850 / 900 / 2100 , HSDPA 850 / 1700 / 1900 / 2100
4G bands
Smart 10 HD
1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41
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
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Zero 4
1, 3, 5, 7, 8, 20, 38, 40, 2, 3, 4, 7, 28
Speed
Smart 10 HD
HSPA, LTE
Zero 4
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Announced
Smart 10 HD
2025, June 16
Zero 4
2017, March. Released 2017, March
Status
Smart 10 HD
Available. Released 2025, June 16
Zero 4
Discontinued
Dimensions
Smart 10 HD
163.6 x 75.6 x 8.5 mm (6.44 x 2.98 x 0.33 in)
Zero 4
151.5 x 76 x 7.8 mm (5.96 x 2.99 x 0.31 in)
Weight
Smart 10 HD
184 g (6.49 oz)
Zero 4
167.5 g (5.93 oz)
Build
Smart 10 HD
Glass front, plastic back, plastic frame
Zero 4
-
SIM
Smart 10 HD
Nano-SIM + Nano-SIM
Zero 4
Dual SIM (Micro-SIM, dual stand-by)
Type
Smart 10 HD
IPS LCD, 90Hz, 500 nits (peak)
Zero 4
IPS LCD
Size
Smart 10 HD
6.6 inches, 104.6 cm2 (~84.6% screen-to-body ratio)
Zero 4
5.5 inches, 83.4 cm2 (~72.4% screen-to-body ratio)
Resolution
Smart 10 HD
720 x 1612 pixels, 20:9 ratio (~267 ppi density)
Zero 4
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Protection
Smart 10 HD
-
Zero 4
Corning Gorilla Glass 3
OS
Smart 10 HD
Android 14 (Go edition)
Zero 4
Android 6.0 (Marshmallow)
Chipset
Smart 10 HD
(12 nm)
Zero 4
Mediatek MT6753 (28 nm)
CPU
Smart 10 HD
Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Zero 4
Octa-core 1.3 GHz Cortex-A53
GPU
Smart 10 HD
Mali-G57 MC1
Zero 4
Mali-T720MP3
Card slot
Smart 10 HD
microSDXC (dedicated slot)
Zero 4
microSDXC (dedicated slot)
Internal
Smart 10 HD
64GB 2GB RAM
Zero 4
32GB 3GB RAM
Other
Smart 10 HD
eMMC 5.1
Zero 4
-
Single
Smart 10 HD
13 MP, f/1.9, 27mm (wide), AF
Zero 4
16 MP, f/2.0, PDAF, OIS
Features
Smart 10 HD
Quad-LED flash
Zero 4
Laser AF, Dual-LED flash, panorama, HDR
Video
Smart 10 HD
1080p@30fps
Zero 4
1080p@30fps
Single
Smart 10 HD
8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Zero 4
8 MP, f/2.2
Video
Smart 10 HD
1080p@30fps
Zero 4
Features
Smart 10 HD
-
Zero 4
LED flash
Loudspeaker
Smart 10 HD
Yes
Zero 4
Yes
3.5mm jack
Smart 10 HD
Yes
Zero 4
Yes
WLAN
Smart 10 HD
Wi-Fi 802.11 a/b/g/n/ac
Zero 4
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
Smart 10 HD
Yes
Zero 4
4.0, A2DP, LE
Positioning
Smart 10 HD
GPS
Zero 4
GPS
NFC
Smart 10 HD
No
Zero 4
No
Infrared port
Smart 10 HD
Yes
Zero 4
-
Radio
Smart 10 HD
FM radio
Zero 4
FM radio
USB
Smart 10 HD
USB Type-C 2.0, OTG
Zero 4
microUSB 2.0, OTG
Sensors
Smart 10 HD
Fingerprint (side-mounted), accelerometer, proximity, compass
Zero 4
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
Smart 10 HD
5000 mAh
Zero 4
Li-Ion 3200 mAh, non-removable
Charging
Smart 10 HD
10W wired Reverse wired
Zero 4
-
Colors
Smart 10 HD
Timber Black, Shiny Gold, Crystal Green, Galaxy White
Zero 4
Anthracite Grey, Champagne Gold, Barbie Pink, Filber Brown
Models
Smart 10 HD
X6525D
Zero 4
Zero 4
Price
Smart 10 HD
About 60 EUR
Zero 4
-