Screen size
M15Winner: 6.7"+81%
Smartwatch 71.3"
Quick verdict
M15 leads the measured specs 14-3.
Measured wins
M15
14
spec wins
Overall winner
Ties
2
equal specs
Smartwatch 7
3
spec wins
Screen size
Technology
M15
GSM / HSPA / LTE
Smartwatch 7
No cellular connectivity
2G bands
M15
GSM 850 / 900 / 1800 / 1900
Smartwatch 7
N/A
3G bands
M15
HSDPA 850 / 900 / 1900 / 2100
Smartwatch 7
N/A
4G bands
M15
1, 2, 3, 5, 7, 8, 20, 28, 40
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
5G support
equal specsNFC
equal specs3.5mm jack
SD card
Stereo speakers
Smartwatch 7
N/A
Speed
M15
HSPA, LTE
Smartwatch 7
No
GPRS
M15
-
Smartwatch 7
No
EDGE
M15
-
Smartwatch 7
No
Announced
M15
2021, May 24. Released 2021, May 28
Smartwatch 7
2021, June 09. Released 2021, June 13
Status
M15
Discontinued
Smartwatch 7
Discontinued
Dimensions
M15
165.2 x 77 x 9 mm (6.50 x 3.03 x 0.35 in)
Smartwatch 7
50 x 45 x 9.6 mm (1.97 x 1.77 x 0.38 in)
Weight
M15
-
Smartwatch 7
35 g (1.23 oz)
SIM
M15
Nano-SIM + Nano-SIM
Smartwatch 7
No
Other
M15
-
Smartwatch 7
IP67 Compatible with standard 22mm straps
Type
M15
IPS LCD
Smartwatch 7
TFT LCD
Size
M15
6.67 inches, 107.4 cm2 (~84.4% screen-to-body ratio)
Smartwatch 7
1.3 inches
Resolution
M15
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Smartwatch 7
240 x 240 pixels (~261 ppi density)
OS
M15
Android 11
Smartwatch 7
Proprietary OS
Chipset
M15
Mediatek MT6785 Helio G90 (12 nm)
Smartwatch 7
-
CPU
M15
Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Smartwatch 7
-
GPU
M15
Mali-G76 MC4
Smartwatch 7
-
Card slot
M15
microSDXC (dedicated slot)
Smartwatch 7
No
Internal
M15
128GB 6GB RAM, 128GB 8GB RAM
Smartwatch 7
-
Other
M15
-
Smartwatch 7
eMMC 4.5
Quad
M15
48 MP, (wide), PDAF 5 MP, (ultrawide) 2 MP (macro) Auxiliary lens
Smartwatch 7
-
Features
M15
LED flash, HDR, panorama
Smartwatch 7
-
Video
M15
1080p@30fps
Smartwatch 7
-
Single
M15
16 MP
Smartwatch 7
-
Video
M15
1080p@30fps
Smartwatch 7
-
Loudspeaker
M15
Yes
Smartwatch 7
No
3.5mm jack
M15
Yes
Smartwatch 7
No
WLAN
M15
Yes
Smartwatch 7
No
Bluetooth
M15
Yes
Smartwatch 7
4.0
Positioning
M15
GPS
Smartwatch 7
No
NFC
M15
No
Smartwatch 7
No
Radio
M15
Unspecified
Smartwatch 7
No
USB
M15
USB Type-C 2.0, OTG
Smartwatch 7
No
Sensors
M15
Fingerprint (rear-mounted), accelerometer, gyro, proximity
Smartwatch 7
Accelerometer, heart rate, SpO2
Type
M15
Li-Po 5100 mAh
Smartwatch 7
Li-Ion 130 mAh
Charging
M15
18W wired
Smartwatch 7
-
Colors
M15
Gray
Smartwatch 7
Teal Green, Mimi Pink, Matte Black
Price
M15
About 180 EUR
Smartwatch 7
About 50 EUR
Other
M15
-
Smartwatch 7
No