Screen size
Galaxy Watch Ultra21.5"
X820Winner: 1.8"+17%
Quick verdict
Galaxy Watch Ultra2 leads the measured specs 12-4.
Measured wins
Galaxy Watch Ultra2
12
spec wins
Overall winner
Ties
3
equal specs
X820
4
spec wins
Screen size
Technology
Galaxy Watch Ultra2
GSM / HSPA / LTE
X820
GSM
2G bands
Galaxy Watch Ultra2
GSM 850 / 900 / 1800 / 1900
X820
GSM 900 / 1800 / 1900
3G bands
Galaxy Watch Ultra2
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
X820
-
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
X820
-
Speed
Galaxy Watch Ultra2
HSPA, LTE
X820
-
GPRS
Galaxy Watch Ultra2
-
X820
Class 10
EDGE
Galaxy Watch Ultra2
-
X820
Class 10
Announced
Galaxy Watch Ultra2
Not announced yet
X820
2006, May
Status
Galaxy Watch Ultra2
Rumored
X820
Discontinued
Dimensions
Galaxy Watch Ultra2
-
X820
113 x 50 x 6.9 mm (4.45 x 1.97 x 0.27 in)
Weight
Galaxy Watch Ultra2
-
X820
66 g (2.33 oz)
Build
Galaxy Watch Ultra2
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 4)
X820
-
SIM
Galaxy Watch Ultra2
eSIM
X820
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
X820
-
Type
Galaxy Watch Ultra2
Super AMOLED, 5000 nits (peak)
X820
TFT, 256K colors
Size
Galaxy Watch Ultra2
1.5 inches
X820
1.8 inches, 35 x 28 mm, 10.2 cm2 (~18.0% screen-to-body ratio)
Resolution
Galaxy Watch Ultra2
480 x 480 pixels (~327 ppi density)
X820
220 x 176 pixels (~157 ppi density)
Protection
Galaxy Watch Ultra2
Sapphire crystal glass
X820
-
OS
Galaxy Watch Ultra2
Android Wear OS 6, One UI Watch 9
X820
-
Chipset
Galaxy Watch Ultra2
Snapdragon SW6100 Wear Elite (3 nm)
X820
-
CPU
Galaxy Watch Ultra2
Penta-core (1x2.1 GHz & 4x 1.95 GHz)
X820
-
Card slot
Galaxy Watch Ultra2
No
X820
No
Internal
Galaxy Watch Ultra2
32GB 2GB RAM, 64GB 2GB RAM
X820
80MB
Phonebook
Galaxy Watch Ultra2
-
X820
1000 entries, Photocall
Call records
Galaxy Watch Ultra2
-
X820
30 dialed, 30 received, 30 missed calls
Other
Galaxy Watch Ultra2
-
X820
3.7 MB for messages
Other
Galaxy Watch Ultra2
No
X820
-
Loudspeaker
Galaxy Watch Ultra2
Yes
X820
Yes
3.5mm jack
Galaxy Watch Ultra2
No
X820
No
Alert types
Galaxy Watch Ultra2
-
X820
Vibration; Downloadable polyphonic, MP3 ringtones
WLAN
Galaxy Watch Ultra2
Wi-Fi 802.11 a/b/g/n/ac, dual-band
X820
No
Bluetooth
Galaxy Watch Ultra2
6.0, A2DP, LE
X820
1.2, A2DP
Positioning
Galaxy Watch Ultra2
GPS (L1+L5), GLONASS, GALILEO, BDS
X820
No
NFC
Galaxy Watch Ultra2
Yes
X820
-
Radio
Galaxy Watch Ultra2
No
X820
No
USB
Galaxy Watch Ultra2
No
X820
Proprietary
Sensors
Galaxy Watch Ultra2
Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (body), temperature (water), BioActive
X820
Messaging
Galaxy Watch Ultra2
-
X820
SMS, EMS, MMS, Email
Browser
Galaxy Watch Ultra2
-
X820
WAP 2.0/xHTML
Games
Galaxy Watch Ultra2
-
X820
Yes + downloadable
Java
Galaxy Watch Ultra2
-
X820
Yes, MIDP 2.0
Other
Galaxy Watch Ultra2
-
X820
MP3/AAC/AAC+ player Predictive text input Organizer Document viewer (Word, Excel, PowerPoint, PDF) TV-out Voice memo
Type
Galaxy Watch Ultra2
Si/C Li-Ion 800 mAh
X820
Removable Li-Po 630 mAh battery
Charging
Galaxy Watch Ultra2
10W wireless
X820
-
Stand-by
Galaxy Watch Ultra2
-
X820
Up to 210 h
Talk time
Galaxy Watch Ultra2
-
X820
Up to 2 h 30 min
Colors
Galaxy Watch Ultra2
Gray, Green
X820
Black/Blue, Silver, Pink
Models
Galaxy Watch Ultra2
SM-L715F
X820
-
Price
Galaxy Watch Ultra2
About 750 EUR
X820
About 110 EUR
SAR
Galaxy Watch Ultra2
-
X820
1.19 W/kg (head) 0.28 W/kg (body)
SAR EU
Galaxy Watch Ultra2
-
X820
0.64 W/kg (head)
Single
Galaxy Watch Ultra2
-
X820
2 MP
Video
Galaxy Watch Ultra2
-
X820
CIF
Other
Galaxy Watch Ultra2
-
X820
No