Screen size
Galaxy Watch9Winner: 1.5"+18%
Gear S21.2"
Quick verdict
Galaxy Watch9 leads the measured specs 11-2.
Measured wins
Galaxy Watch9
11
spec wins
Overall winner
Ties
5
equal specs
Gear S2
2
spec wins
Screen size
Technology
Galaxy Watch9
GSM / HSPA / LTE
Gear S2
No cellular connectivity
2G bands
Galaxy Watch9
GSM 850 / 900 / 1800 / 1900
Gear S2
N/A
3G bands
Galaxy Watch9
HSDPA 850 / 900 / 2100
Gear S2
-
4G bands
Galaxy Watch9
LTE
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Gear S2
-
Speed
Galaxy Watch9
HSPA, LTE
Gear S2
-
GPRS
Galaxy Watch9
-
Gear S2
No
EDGE
Galaxy Watch9
-
Gear S2
No
Announced
Galaxy Watch9
Not announced yet
Gear S2
2015, August. Released 2015, October
Status
Galaxy Watch9
Rumored
Gear S2
Discontinued
Dimensions
Galaxy Watch9
-
Gear S2
49.8 x 42.3 x 11.4 mm (1.96 x 1.67 x 0.45 in)
Weight
Galaxy Watch9
-
Gear S2
47 g (1.66 oz)
Build
Galaxy Watch9
Glass front (Sapphire crystal), aluminum frame
Gear S2
Glass front (Gorilla Glass 3), stainless steel frame
SIM
Galaxy Watch9
eSIM
Gear S2
No
Other
Galaxy Watch9
MIL-STD-810H compliant* IP68 dust tight and water resistant (immersible up to 50m/5ATM) ECG certified Blood pressure monitor Armor aluminum 2 frame *does not guarantee ruggedness or use in extreme conditions
Gear S2
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Type
Galaxy Watch9
Super AMOLED, 3000 nits (peak)
Gear S2
Super AMOLED
Size
Galaxy Watch9
1.47 inches
Gear S2
1.2 inches
Resolution
Galaxy Watch9
480 x 480 pixels (~327 ppi density)
Gear S2
360 x 360 pixels (~302 ppi density)
Protection
Galaxy Watch9
Sapphire crystal
Gear S2
Corning Gorilla Glass 3
Other
Galaxy Watch9
-
Gear S2
Rotating bezel
OS
Galaxy Watch9
Android Wear OS 6, One UI Watch 9
Gear S2
Tizen OS 2.3.2
Chipset
Galaxy Watch9
Snapdragon SW6100 Wear Elite (3 nm)
Gear S2
Exynos 3250 Dual
CPU
Galaxy Watch9
Penta-core (1x2.1 GHz & 4x 1.95 GHz)
Gear S2
Dual-core 1.0 GHz Cortex-A7
GPU
Galaxy Watch9
-
Gear S2
Mali-400MP2
Card slot
Galaxy Watch9
No
Gear S2
No
Internal
Galaxy Watch9
32GB 2GB RAM
Gear S2
4GB 512MB RAM
Other
Galaxy Watch9
No
Gear S2
No
Loudspeaker
Galaxy Watch9
Yes
Gear S2
No
3.5mm jack
Galaxy Watch9
No
Gear S2
No
WLAN
Galaxy Watch9
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Gear S2
Wi-Fi 802.11 b/g/n
Bluetooth
Galaxy Watch9
6.0, A2DP, LE
Gear S2
4.1, A2DP, LE
Positioning
Galaxy Watch9
GPS (L1+L5), GLONASS, GALILEO, BDS
Gear S2
No
NFC
Galaxy Watch9
Yes
Gear S2
Yes
Radio
Galaxy Watch9
No
Gear S2
No
USB
Galaxy Watch9
No
Gear S2
No
Sensors
Galaxy Watch9
Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (skin), BioActive, antioxidant index
Gear S2
Accelerometer, gyro, heart rate, barometer
Other
Galaxy Watch9
-
Gear S2
S-Voice natural language commands and dictation MP3/M4A/AAC/WAV player Photo viewer Voice memo/dial/commands Samsung Pay
Type
Galaxy Watch9
Li-Ion 445 mAh
Gear S2
Li-Ion 250 mAh, non-removable
Charging
Galaxy Watch9
10W wireless
Gear S2
Wireless (Qi)
Stand-by
Galaxy Watch9
-
Gear S2
Up to 48 h (3G)
Colors
Galaxy Watch9
Silver; other colors
Gear S2
Dark Gray, Silver
Models
Galaxy Watch9
-
Gear S2
SM-R720
Price
Galaxy Watch9
-
Gear S2
About 170 EUR