Screen size
Galaxy Watch Ultra21.5"
X520Winner: 1.9"+21%
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
X520
3
spec wins
Screen size
Technology
Galaxy Watch Ultra2
GSM / HSPA / LTE
X520
GSM
2G bands
Galaxy Watch Ultra2
GSM 850 / 900 / 1800 / 1900
X520
GSM 900 / 1800 / 1900
3G bands
Galaxy Watch Ultra2
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
X520
-
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
X520
-
Speed
Galaxy Watch Ultra2
HSPA, LTE
X520
-
GPRS
Galaxy Watch Ultra2
-
X520
Class 10
EDGE
Galaxy Watch Ultra2
-
X520
No
Announced
Galaxy Watch Ultra2
Not announced yet
X520
2006, October
Status
Galaxy Watch Ultra2
Rumored
X520
Discontinued
Dimensions
Galaxy Watch Ultra2
-
X520
89 x 42 x 18 mm (3.50 x 1.65 x 0.71 in)
Weight
Galaxy Watch Ultra2
-
X520
80 g (2.82 oz)
Build
Galaxy Watch Ultra2
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 4)
X520
-
SIM
Galaxy Watch Ultra2
eSIM
X520
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
X520
-
Type
Galaxy Watch Ultra2
Super AMOLED, 5000 nits (peak)
X520
TFT, 65K colors
Size
Galaxy Watch Ultra2
1.5 inches
X520
1.9 inches, 11.4 cm2 (~30.4% screen-to-body ratio)
Resolution
Galaxy Watch Ultra2
480 x 480 pixels (~327 ppi density)
X520
128 x 160 pixels (~108 ppi density)
Protection
Galaxy Watch Ultra2
Sapphire crystal glass
X520
-
OS
Galaxy Watch Ultra2
Android Wear OS 6, One UI Watch 9
X520
-
Chipset
Galaxy Watch Ultra2
Snapdragon SW6100 Wear Elite (3 nm)
X520
-
CPU
Galaxy Watch Ultra2
Penta-core (1x2.1 GHz & 4x 1.95 GHz)
X520
-
Card slot
Galaxy Watch Ultra2
No
X520
No
Internal
Galaxy Watch Ultra2
32GB 2GB RAM, 64GB 2GB RAM
X520
2.8MB
Phonebook
Galaxy Watch Ultra2
-
X520
Yes, 1000 entries
Call records
Galaxy Watch Ultra2
-
X520
20 dialed, 20 received, 20 missed calls
Other
Galaxy Watch Ultra2
No
X520
-
Loudspeaker
Galaxy Watch Ultra2
Yes
X520
Yes
3.5mm jack
Galaxy Watch Ultra2
No
X520
No
Alert types
Galaxy Watch Ultra2
-
X520
Vibration; Downloadable polyphonic ringtones
WLAN
Galaxy Watch Ultra2
Wi-Fi 802.11 a/b/g/n/ac, dual-band
X520
No
Bluetooth
Galaxy Watch Ultra2
6.0, A2DP, LE
X520
No
Positioning
Galaxy Watch Ultra2
GPS (L1+L5), GLONASS, GALILEO, BDS
X520
No
NFC
Galaxy Watch Ultra2
Yes
X520
-
Radio
Galaxy Watch Ultra2
No
X520
Stereo FM radio
USB
Galaxy Watch Ultra2
No
X520
Proprietary
Infrared port
Galaxy Watch Ultra2
-
X520
Yes
Sensors
Galaxy Watch Ultra2
Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (body), temperature (water), BioActive
X520
Messaging
Galaxy Watch Ultra2
-
X520
SMS, EMS, MMS
Browser
Galaxy Watch Ultra2
-
X520
WAP 1.2/xHTML
Games
Galaxy Watch Ultra2
-
X520
Yes + downloadable
Java
Galaxy Watch Ultra2
-
X520
Yes, MIDP 2.0
Other
Galaxy Watch Ultra2
-
X520
IrDA for Phonebook contacts only Predictive text input Organizer Voice memo
Type
Galaxy Watch Ultra2
Si/C Li-Ion 800 mAh
X520
Removable Li-Ion 750 mAh battery
Charging
Galaxy Watch Ultra2
10W wireless
X520
-
Stand-by
Galaxy Watch Ultra2
-
X520
Up to 310 h
Talk time
Galaxy Watch Ultra2
-
X520
Up to 6 h 20 min
Colors
Galaxy Watch Ultra2
Gray, Green
X520
Black, Blue, Red, Green
Models
Galaxy Watch Ultra2
SM-L715F
X520
-
Price
Galaxy Watch Ultra2
About 750 EUR
X520
About 70 EUR
SAR
Galaxy Watch Ultra2
-
X520
1.36 W/kg (head) 0.24 W/kg (body)
SAR EU
Galaxy Watch Ultra2
-
X520
0.85 W/kg (head)
Single
Galaxy Watch Ultra2
-
X520
VGA
Video
Galaxy Watch Ultra2
-
X520
No
Other
Galaxy Watch Ultra2
-
X520
No