vs
9.2Display8.8
6.3Battery life9.7
5.0Health tracking4.9
9.6Sports & outdoor9.6
8.6Build & durability5.0
Dimensions
Size comparison
Active 2 (Square)Cheetah 2 Ultra
| Active 2 (Square) | Cheetah 2 Ultra | Difference | |
|---|---|---|---|
| Height | 36.9 mm | 47.4 mm | −10.5 mm |
| Width | 43.3 mm | 47.4 mm | −4.1 mm |
| Thickness | 9 mm | 13.3 mm | −4.3 mm |
| Weight | 31 g | 52 g | −21 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Active 2 (Square) better than Cheetah 2 Ultra?
- Weight31.4 g vs 52 g+66%
- Screen size1.75″ vs 1.5″+17%
- Thickness9 mm vs 13.3 mm+48%
- Pixel density341 ppi vs 323 ppi+6%
Why is Cheetah 2 Ultra better than Active 2 (Square)?
- Battery life (smartwatch mode)10 days vs 30 days3×
- Battery capacity260 mAh vs 780 mAh3×
- Resolution (width)390 px vs 480 px+23%
- Sport profiles160 vs 180+12%
Specifications
Side by side
| Design & durability | ||
| Case size | 43 mm | 47 mm |
| Weight | 31.4 g | 52 g |
| Thickness | 9 mm | 13.3 mm |
| Height | 36.9 mm | 47.4 mm |
| Width | 43.3 mm | 47.4 mm |
| Case material | Stainless steel | Titanium |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | Sapphire glass | Sapphire glass |
| Water resistance | 5 ATM | 5 ATM |
| Military-grade (MIL-STD-810) | — | Yes |
| Display | ||
| Screen size | 1.75″ | 1.5″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 390 px | 480 px |
| Resolution (height) | 450 px | 480 px |
| Pixel density | 341 ppi | 323 ppi |
| Peak brightness | — | 3,000 nits |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | 30 days |
| Battery saver mode | 19 days | — |
| GPS battery life | 21 h | — |
| GPS battery life (dual-band) | — | 60 h |
| Battery capacity | 260 mAh | 780 mAh |
| Charging | Magnetic charging base | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Temperature sensor | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | — | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Sport profiles | 160 | 180 |
| LED flashlight | — | Yes |
| Connectivity | ||
| Wi-Fi | — | Wi-Fi 4 |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Calls from the wrist | Yes | Yes |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Voice assistant | Yes | Yes |
| Music on the watch | — | Yes |
| Storage | — | 64 GB |
| Platform | ||
| Platform | Proprietary | Proprietary |
| Works with | Android, iOS | Android, iOS |
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