Screen size
Galaxy Watch Ultra21.5"
S720iWinner: 2.0"+25%
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
S720i
6
spec wins
Screen size
Technology
Galaxy Watch Ultra2
GSM / HSPA / LTE
S720i
GSM
2G bands
Galaxy Watch Ultra2
GSM 850 / 900 / 1800 / 1900
S720i
GSM 900 / 1800 / 1900
3G bands
Galaxy Watch Ultra2
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
S720i
-
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
S720i
-
Speed
Galaxy Watch Ultra2
HSPA, LTE
S720i
-
GPRS
Galaxy Watch Ultra2
-
S720i
Yes
EDGE
Galaxy Watch Ultra2
-
S720i
Yes
Announced
Galaxy Watch Ultra2
Not announced yet
S720i
2007, July. Released 2008
Status
Galaxy Watch Ultra2
Rumored
S720i
Discontinued
Dimensions
Galaxy Watch Ultra2
-
S720i
96.5 x 46 x 17.7 mm (3.80 x 1.81 x 0.70 in)
Weight
Galaxy Watch Ultra2
-
S720i
88 g (3.10 oz)
Build
Galaxy Watch Ultra2
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 4)
S720i
-
SIM
Galaxy Watch Ultra2
eSIM
S720i
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
S720i
-
Type
Galaxy Watch Ultra2
Super AMOLED, 5000 nits (peak)
S720i
TFT, 65K colors
Size
Galaxy Watch Ultra2
1.5 inches
S720i
2.0 inches, 12.6 cm2 (~28.4% screen-to-body ratio)
Resolution
Galaxy Watch Ultra2
480 x 480 pixels (~327 ppi density)
S720i
128 x 160 pixels (~102 ppi density)
Protection
Galaxy Watch Ultra2
Sapphire crystal glass
S720i
-
OS
Galaxy Watch Ultra2
Android Wear OS 6, One UI Watch 9
S720i
-
Chipset
Galaxy Watch Ultra2
Snapdragon SW6100 Wear Elite (3 nm)
S720i
-
CPU
Galaxy Watch Ultra2
Penta-core (1x2.1 GHz & 4x 1.95 GHz)
S720i
-
Card slot
Galaxy Watch Ultra2
No
S720i
microSD (dedicated slot)
Internal
Galaxy Watch Ultra2
32GB 2GB RAM, 64GB 2GB RAM
S720i
20MB
Phonebook
Galaxy Watch Ultra2
-
S720i
1000 entries, Photocall
Call records
Galaxy Watch Ultra2
-
S720i
30 dialed, 30 received, 30 missed calls
Other
Galaxy Watch Ultra2
No
S720i
-
Loudspeaker
Galaxy Watch Ultra2
Yes
S720i
Yes
3.5mm jack
Galaxy Watch Ultra2
No
S720i
No
Alert types
Galaxy Watch Ultra2
-
S720i
Vibration; Downloadable polyphonic ringtones
WLAN
Galaxy Watch Ultra2
Wi-Fi 802.11 a/b/g/n/ac, dual-band
S720i
No
Bluetooth
Galaxy Watch Ultra2
6.0, A2DP, LE
S720i
2.0, A2DP
Positioning
Galaxy Watch Ultra2
GPS (L1+L5), GLONASS, GALILEO, BDS
S720i
No
NFC
Galaxy Watch Ultra2
Yes
S720i
-
Radio
Galaxy Watch Ultra2
No
S720i
No
USB
Galaxy Watch Ultra2
No
S720i
2.0
Sensors
Galaxy Watch Ultra2
Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (body), temperature (water), BioActive
S720i
Messaging
Galaxy Watch Ultra2
-
S720i
SMS, MMS, Email
Browser
Galaxy Watch Ultra2
-
S720i
i-mode
Games
Galaxy Watch Ultra2
-
S720i
Yes + downloadable
Java
Galaxy Watch Ultra2
-
S720i
Yes, DoJa 1.5
Other
Galaxy Watch Ultra2
-
S720i
MP3/AAC/ACC+ player Predictive text input Photo editor Organizer Voice memo
Type
Galaxy Watch Ultra2
Si/C Li-Ion 800 mAh
S720i
Removable Li-Ion 800 mAh battery
Charging
Galaxy Watch Ultra2
10W wireless
S720i
-
Stand-by
Galaxy Watch Ultra2
-
S720i
Up to 290 h
Talk time
Galaxy Watch Ultra2
-
S720i
Up to 6 h
Colors
Galaxy Watch Ultra2
Gray, Green
S720i
Anthracite
Models
Galaxy Watch Ultra2
SM-L715F
S720i
-
Price
Galaxy Watch Ultra2
About 750 EUR
S720i
-
Single
Galaxy Watch Ultra2
-
S720i
1.3 MP
Video
Galaxy Watch Ultra2
-
S720i
CIF
Other
Galaxy Watch Ultra2
-
S720i
No