Screen size
Galaxy Watch Ultra21.5"
M300Winner: 1.6"+6.3%
Quick verdict
Galaxy Watch Ultra2 leads the measured specs 12-3.
Measured wins
Galaxy Watch Ultra2
12
spec wins
Overall winner
Ties
3
equal specs
M300
3
spec wins
Screen size
Technology
Galaxy Watch Ultra2
GSM / HSPA / LTE
M300
GSM
2G bands
Galaxy Watch Ultra2
GSM 850 / 900 / 1800 / 1900
M300
GSM 900 / 1800 / 1900
3G bands
Galaxy Watch Ultra2
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
M300
-
4G bands
Galaxy Watch Ultra2
LTE
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
3.5mm jack
equal specsSD card
equal specsStereo speakers
M300
-
Speed
Galaxy Watch Ultra2
HSPA, LTE
M300
-
GPRS
Galaxy Watch Ultra2
-
M300
Class 10
EDGE
Galaxy Watch Ultra2
-
M300
No
Announced
Galaxy Watch Ultra2
Not announced yet
M300
2007, May
Status
Galaxy Watch Ultra2
Rumored
M300
Discontinued
Dimensions
Galaxy Watch Ultra2
-
M300
80 x 40 x 16.7 mm (3.15 x 1.57 x 0.66 in)
Weight
Galaxy Watch Ultra2
-
M300
63 g (2.22 oz)
Build
Galaxy Watch Ultra2
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 4)
M300
-
SIM
Galaxy Watch Ultra2
eSIM
M300
Mini-SIM
Other
Galaxy Watch Ultra2
IP68 dust tight and water resistant (immersible up to 100m/10ATM for 10 min) MIL-STD-810H compliant ECG certified
M300
-
Type
Galaxy Watch Ultra2
Super AMOLED, 5000 nits (peak)
M300
TFT, 65K colors
Size
Galaxy Watch Ultra2
1.5 inches
M300
1.6 inches, 8.1 cm2 (~25.2% screen-to-body ratio)
Resolution
Galaxy Watch Ultra2
480 x 480 pixels (~327 ppi density)
M300
128 x 160 pixels (~128 ppi density)
Protection
Galaxy Watch Ultra2
Sapphire crystal glass
M300
-
Other
Galaxy Watch Ultra2
-
M300
Second external mono display (96 x 96 pixels)
OS
Galaxy Watch Ultra2
Android Wear OS 6, One UI Watch 9
M300
-
Chipset
Galaxy Watch Ultra2
Snapdragon SW6100 Wear Elite (3 nm)
M300
-
CPU
Galaxy Watch Ultra2
Penta-core (1x2.1 GHz & 4x 1.95 GHz)
M300
-
Card slot
Galaxy Watch Ultra2
No
M300
No
Internal
Galaxy Watch Ultra2
32GB 2GB RAM, 64GB 2GB RAM
M300
600 KB
Phonebook
Galaxy Watch Ultra2
-
M300
500 entries
Call records
Galaxy Watch Ultra2
-
M300
20 dialed, 20 received, 20 missed calls
Other
Galaxy Watch Ultra2
No
M300
-
Loudspeaker
Galaxy Watch Ultra2
Yes
M300
Yes
3.5mm jack
Galaxy Watch Ultra2
No
M300
No
Alert types
Galaxy Watch Ultra2
-
M300
Vibration; Downloadable polyphonic ringtones
WLAN
Galaxy Watch Ultra2
Wi-Fi 802.11 a/b/g/n/ac, dual-band
M300
No
Bluetooth
Galaxy Watch Ultra2
6.0, A2DP, LE
M300
No
Positioning
Galaxy Watch Ultra2
GPS (L1+L5), GLONASS, GALILEO, BDS
M300
No
NFC
Galaxy Watch Ultra2
Yes
M300
-
Radio
Galaxy Watch Ultra2
No
M300
FM radio
USB
Galaxy Watch Ultra2
No
M300
Proprietary
Sensors
Galaxy Watch Ultra2
Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (body), temperature (water), BioActive
M300
Messaging
Galaxy Watch Ultra2
-
M300
SMS, MMS
Browser
Galaxy Watch Ultra2
-
M300
WAP 2.0/xHTML
Games
Galaxy Watch Ultra2
-
M300
Yes + downloadable
Java
Galaxy Watch Ultra2
-
M300
Yes, MIDP 2.0
Other
Galaxy Watch Ultra2
-
M300
Predictive text input Organizer Voice memo
Type
Galaxy Watch Ultra2
Si/C Li-Ion 800 mAh
M300
Removable Li-Ion 700 mAh battery
Charging
Galaxy Watch Ultra2
10W wireless
M300
-
Stand-by
Galaxy Watch Ultra2
-
M300
Up to 230 h
Talk time
Galaxy Watch Ultra2
-
M300
Up to 3 h
Colors
Galaxy Watch Ultra2
Gray, Green
M300
Ocean Blue
Models
Galaxy Watch Ultra2
SM-L715F
M300
-
Price
Galaxy Watch Ultra2
About 750 EUR
M300
About 60 EUR
SAR
Galaxy Watch Ultra2
-
M300
1.09 W/kg (head) 0.58 W/kg (body)
SAR EU
Galaxy Watch Ultra2
-
M300
0.99 W/kg (head)
Single
Galaxy Watch Ultra2
-
M300
VGA
Video
Galaxy Watch Ultra2
-
M300
Yes
Other
Galaxy Watch Ultra2
-
M300
No