Screen size
Moto Watch 1001.3"
Signature 27Winner: 6.8"+81%
Quick verdict
Signature 27 leads the measured specs 18-2.
Measured wins
Moto Watch 100
2
spec wins
Ties
2
equal specs
Signature 27
18
spec wins
Overall winner
Screen size
Technology
Moto Watch 100
No cellular connectivity
Signature 27
GSM / HSPA / LTE / 5G
2G bands
Moto Watch 100
N/A
Signature 27
GSM 850 / 900 / 1800 / 1900
GPRS
Moto Watch 100
No
Signature 27
-
EDGE
Moto Watch 100
No
Signature 27
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
NFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
-
3G bands
Moto Watch 100
-
Signature 27
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Moto Watch 100
-
Signature 27
LTE
5G bands
Moto Watch 100
-
Signature 27
SA/NSA/Sub6
Speed
Moto Watch 100
-
Signature 27
HSPA, LTE, 5G
Announced
Moto Watch 100
2021, November 17
Signature 27
2026, September 22
Status
Moto Watch 100
Available. Released 2021, December 10
Signature 27
Coming soon. Exp. release 2026, Oct-Nov
Dimensions
Moto Watch 100
42 x 46 x 11.9 mm (1.65 x 1.81 x 0.47 in)
Signature 27
-
Weight
Moto Watch 100
29 g (1.02 oz)
Signature 27
-
Build
Moto Watch 100
Glass front, plastic back, aluminum frame
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Glass front (Gorilla Glass Victus 2), aluminum frame
SIM
Moto Watch 100
No
Signature 27
Nano-SIM + Nano-SIM
Other
Moto Watch 100
5 ATM, 50m water resistant Compatible with standard 20mm straps
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IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.2m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Type
Moto Watch 100
IPS LCD
Signature 27
LTPO AMOLED, 1B colors, 165Hz, Dolby Vision, HDR10+
Size
Moto Watch 100
1.3 inches
Signature 27
6.8 inches, 112.4 cm2
Resolution
Moto Watch 100
360 x 360 pixels (~392 ppi density)
Signature 27
1264 x 2780 pixels (~449 ppi density)
Protection
Moto Watch 100
-
Signature 27
Corning Gorilla Glass Victus 2
OS
Moto Watch 100
Moto Watch OS
Signature 27
Android 17, up to 7 major OS updates
Chipset
Moto Watch 100
-
Signature 27
Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
CPU
Moto Watch 100
-
Signature 27
Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
GPU
Moto Watch 100
-
Signature 27
Adreno 850
Card slot
Moto Watch 100
No
Signature 27
No
Internal
Moto Watch 100
Unspecified storage
Signature 27
256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Other
Moto Watch 100
-
Signature 27
UFS 4.1
Other
Moto Watch 100
No
Signature 27
-
Loudspeaker
Moto Watch 100
No
Signature 27
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
Moto Watch 100
No
Signature 27
No
Other
Moto Watch 100
-
Signature 27
24-bit/192kHz Hi-Res & Hi-Res Wireless audio Sound by Bang & Olufsen
WLAN
Moto Watch 100
No
Signature 27
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Moto Watch 100
5.0, A2DP, LE
Signature 27
6.0, A2DP, LE
Positioning
Moto Watch 100
GPS, GLONASS
Signature 27
GPS, GLONASS, GALILEO, BDS, NavIC
NFC
Moto Watch 100
No
Signature 27
Yes
Radio
Moto Watch 100
No
Signature 27
No
USB
Moto Watch 100
No
Signature 27
USB Type-C 3.1 Gen2, OTG, DisplayPort 1.4
Sensors
Moto Watch 100
Accelerometer, gyro, heart rate, SpO2
Signature 27
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Other
Moto Watch 100
-
Signature 27
Smart Connect (Ready For) support Ultra Wideband (UWB) support
Type
Moto Watch 100
Li-Ion 355 mAh
Signature 27
Si/C Li-Ion 7000 mAh
Charging
Moto Watch 100
-
Signature 27
90W wired 50W wireless 10W reverse wireless 5W reverse wired
Colors
Moto Watch 100
Glacier Silver, Phantom Black
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Pantone: Coal Smoke, Capulet Olive
Price
Moto Watch 100
About 100 EUR
Signature 27
-
Triple
Moto Watch 100
-
Signature 27
50 MP, (wide), 1/1.28", 1.22µm, PDAF, OIS 200 MP, (periscope telephoto), PDAF, OIS, 5x optical zoom 50 MP, f/2.0, 12mm, 122˚ (ultrawide), 1/2.76", 0.64µm, PDAF
Features
Moto Watch 100
-
Signature 27
Dual-LED flash, HDR, panorama
Video
Moto Watch 100
-
Signature 27
8K@30fps (Dolby Vision), 4K@30/60fps (Dolby Vision), 4K@120fps, 1080p@30/60/120/240fps, 10-bit HDR10+, gyro-EIS
Single
Moto Watch 100
-
Signature 27
50 MP, f/2.0, 21mm (wide), 1/2.93", 0.6µm, dual-pixel PDAF
Features
Moto Watch 100
-
Signature 27
HDR
Video
Moto Watch 100
-
Signature 27
4K@30/60fps, 1080p@30/60/120/240fps, HDR