Screen size
Galaxy Watch Ultra21.5"
J750Winner: 1.8"+17%
Quick verdict
Galaxy Watch Ultra2 leads the measured specs 11-6.
Measured wins
Galaxy Watch Ultra2
11
spec wins
Overall winner
Ties
3
equal specs
J750
6
spec wins
Screen size
Technology
Galaxy Watch Ultra2
GSM / HSPA / LTE
J750
GSM / UMTS
2G bands
Galaxy Watch Ultra2
GSM 850 / 900 / 1800 / 1900
J750
GSM 900 / 1800 / 1900
3G bands
Galaxy Watch Ultra2
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
J750
UMTS 2100
4G bands
Galaxy Watch Ultra2
LTE
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
J750
-
Speed
Galaxy Watch Ultra2
HSPA, LTE
J750
Yes, 384 kbps
Announced
Galaxy Watch Ultra2
Not announced yet
J750
2007, October. Released 2008, January
Status
Galaxy Watch Ultra2
Rumored
J750
Discontinued
Dimensions
Galaxy Watch Ultra2
-
J750
99 x 48 x 18.4 mm (3.90 x 1.89 x 0.72 in)
Weight
Galaxy Watch Ultra2
-
J750
79 g (2.79 oz)
Build
Galaxy Watch Ultra2
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 4)
J750
-
SIM
Galaxy Watch Ultra2
eSIM
J750
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
J750
-
Type
Galaxy Watch Ultra2
Super AMOLED, 5000 nits (peak)
J750
TFT, 256K colors
Size
Galaxy Watch Ultra2
1.5 inches
J750
1.8 inches, 10.2 cm2 (~21.5% screen-to-body ratio)
Resolution
Galaxy Watch Ultra2
480 x 480 pixels (~327 ppi density)
J750
176 x 220 pixels (~157 ppi density)
Protection
Galaxy Watch Ultra2
Sapphire crystal glass
J750
-
OS
Galaxy Watch Ultra2
Android Wear OS 6, One UI Watch 9
J750
-
Chipset
Galaxy Watch Ultra2
Snapdragon SW6100 Wear Elite (3 nm)
J750
-
CPU
Galaxy Watch Ultra2
Penta-core (1x2.1 GHz & 4x 1.95 GHz)
J750
-
Card slot
Galaxy Watch Ultra2
No
J750
microSD (dedicated slot)
Internal
Galaxy Watch Ultra2
32GB 2GB RAM, 64GB 2GB RAM
J750
8MB
Phonebook
Galaxy Watch Ultra2
-
J750
1000 entries, Photocall
Call records
Galaxy Watch Ultra2
-
J750
20 dialed, 20 received, 20 missed calls
Other
Galaxy Watch Ultra2
No
J750
-
Loudspeaker
Galaxy Watch Ultra2
Yes
J750
Yes
3.5mm jack
Galaxy Watch Ultra2
No
J750
No
Alert types
Galaxy Watch Ultra2
-
J750
Vibration; Downloadable polyphonic, MP3 ringtones
WLAN
Galaxy Watch Ultra2
Wi-Fi 802.11 a/b/g/n/ac, dual-band
J750
No
Bluetooth
Galaxy Watch Ultra2
6.0, A2DP, LE
J750
2.0, A2DP
Positioning
Galaxy Watch Ultra2
GPS (L1+L5), GLONASS, GALILEO, BDS
J750
No
NFC
Galaxy Watch Ultra2
Yes
J750
-
Radio
Galaxy Watch Ultra2
No
J750
No
USB
Galaxy Watch Ultra2
No
J750
2.0
Sensors
Galaxy Watch Ultra2
Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (body), temperature (water), BioActive
J750
Messaging
Galaxy Watch Ultra2
-
J750
SMS(up to 200), MMS, Email
Browser
Galaxy Watch Ultra2
-
J750
WAP 2.0/xHTML, HTML (NetFront 3.4)
Games
Galaxy Watch Ultra2
-
J750
Yes
Java
Galaxy Watch Ultra2
-
J750
Yes, MIDP 2.0
Other
Galaxy Watch Ultra2
-
J750
MP4/3gp player/recorder MP3/AMR/AAC+/RA player Sync ML Organizer Currency converter Voice memo Predictive text input
Type
Galaxy Watch Ultra2
Si/C Li-Ion 800 mAh
J750
Removable Li-Ion 800 mAh battery
Charging
Galaxy Watch Ultra2
10W wireless
J750
-
Stand-by
Galaxy Watch Ultra2
-
J750
Up to 300 h
Talk time
Galaxy Watch Ultra2
-
J750
Up to 3 h
Colors
Galaxy Watch Ultra2
Gray, Green
J750
Black
Models
Galaxy Watch Ultra2
SM-L715F
J750
-
Price
Galaxy Watch Ultra2
About 750 EUR
J750
About 70 EUR
SAR
Galaxy Watch Ultra2
-
J750
0.38 W/kg (head) 0.46 W/kg (body)
SAR EU
Galaxy Watch Ultra2
-
J750
0.54 W/kg (head)
Single
Galaxy Watch Ultra2
-
J750
1.3 MP
Video
Galaxy Watch Ultra2
-
J750
Yes
Single
Galaxy Watch Ultra2
-
J750
VGA videocall camera
Video
Galaxy Watch Ultra2
-
J750