Screen size
C450Winner: 1.5"+1.3%
Galaxy Watch Ultra21.5"
Quick verdict
Galaxy Watch Ultra2 leads the measured specs 11-3.
Measured wins
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3
spec wins
Ties
4
equal specs
Galaxy Watch Ultra2
11
spec wins
Overall winner
Screen size
Technology
C450
GSM
Galaxy Watch Ultra2
GSM / HSPA / LTE
2G bands
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GSM 900 / 1800
Galaxy Watch Ultra2
GSM 850 / 900 / 1800 / 1900
GPRS
C450
Class 10
Galaxy Watch Ultra2
-
EDGE
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No
Galaxy Watch Ultra2
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
equal specsStereo speakers
-
3G bands
C450
-
Galaxy Watch Ultra2
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
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-
Galaxy Watch Ultra2
LTE
Speed
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-
Galaxy Watch Ultra2
HSPA, LTE
Announced
C450
2007, July
Galaxy Watch Ultra2
Not announced yet
Status
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Discontinued
Galaxy Watch Ultra2
Rumored
Dimensions
C450
103.5 x 44.5 x 14.9 mm (4.07 x 1.75 x 0.59 in)
Galaxy Watch Ultra2
-
Weight
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72 g (2.54 oz)
Galaxy Watch Ultra2
-
SIM
C450
Mini-SIM
Galaxy Watch Ultra2
eSIM
Build
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-
Galaxy Watch Ultra2
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 4)
Other
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-
Galaxy Watch Ultra2
IP68 dust tight and water resistant (immersible up to 100m/10ATM for 10 min) MIL-STD-810H compliant ECG certified
Type
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TFT, 65K colors
Galaxy Watch Ultra2
Super AMOLED, 5000 nits (peak)
Size
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1.52 inches, 7.5 cm2 (~16.2% screen-to-body ratio)
Galaxy Watch Ultra2
1.5 inches
Resolution
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128 x 128 pixels, 1:1 ratio (~119 ppi density)
Galaxy Watch Ultra2
480 x 480 pixels (~327 ppi density)
Protection
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-
Galaxy Watch Ultra2
Sapphire crystal glass
Card slot
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No
Galaxy Watch Ultra2
No
Phonebook
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Yes
Galaxy Watch Ultra2
-
Call records
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20 dialed, 20 received, 20 missed calls
Galaxy Watch Ultra2
-
Internal
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2MB
Galaxy Watch Ultra2
32GB 2GB RAM, 64GB 2GB RAM
Single
C450
VGA
Galaxy Watch Ultra2
-
Video
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No
Galaxy Watch Ultra2
-
Other
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No
Galaxy Watch Ultra2
-
Loudspeaker
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Yes
Galaxy Watch Ultra2
Yes
Alert types
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Vibration; Downloadable polyphonic ringtones
Galaxy Watch Ultra2
-
3.5mm jack
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No
Galaxy Watch Ultra2
No
WLAN
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No
Galaxy Watch Ultra2
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
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No
Galaxy Watch Ultra2
6.0, A2DP, LE
Positioning
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No
Galaxy Watch Ultra2
GPS (L1+L5), GLONASS, GALILEO, BDS
Radio
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FM radio
Galaxy Watch Ultra2
No
USB
C450
Proprietary
Galaxy Watch Ultra2
No
NFC
C450
-
Galaxy Watch Ultra2
Yes
Sensors
C450
Galaxy Watch Ultra2
Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (body), temperature (water), BioActive
Messaging
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SMS, MMS
Galaxy Watch Ultra2
-
Browser
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WAP 2.0/xHTML
Galaxy Watch Ultra2
-
Games
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Yes
Galaxy Watch Ultra2
-
Java
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No
Galaxy Watch Ultra2
-
Other
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Predictive text input Organizer
Galaxy Watch Ultra2
-
Type
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Removable Li-Ion 800 mAh battery
Galaxy Watch Ultra2
Si/C Li-Ion 800 mAh
Stand-by
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Up to 300 h
Galaxy Watch Ultra2
-
Talk time
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Up to 3 h 20 min
Galaxy Watch Ultra2
-
Charging
C450
-
Galaxy Watch Ultra2
10W wireless
Colors
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Black
Galaxy Watch Ultra2
Gray, Green
SAR EU
C450
1.87 W/kg (head)
Galaxy Watch Ultra2
-
Price
C450
About 60 EUR
Galaxy Watch Ultra2
About 750 EUR
Models
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-
Galaxy Watch Ultra2
SM-L715F
OS
C450
-
Galaxy Watch Ultra2
Android Wear OS 6, One UI Watch 9
Chipset
C450
-
Galaxy Watch Ultra2
Snapdragon SW6100 Wear Elite (3 nm)
CPU
C450
-
Galaxy Watch Ultra2
Penta-core (1x2.1 GHz & 4x 1.95 GHz)
Other
C450
-
Galaxy Watch Ultra2
No