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- KeyChain 2 vs C400
AKASO KeyChain 2 vs SJCAM C400
What KeyChain 2 does better (1) and where C400 wins (5) — every spec side by side.
vs
5.7Video4.4
6.7Photo5.1
Dimensions
Size comparison
KeyChain 2C400
| KeyChain 2 | C400 | Difference | |
|---|---|---|---|
| Height | 34 mm | 32 mm | +2 mm |
| Width | 68 mm | 68 mm | = |
| Depth | 27 mm | 25.5 mm | +1.5 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is KeyChain 2 better than C400?
- Sensor size (optical format)0.77″ vs 0.36″2.2×
Why is C400 better than KeyChain 2?
- Max frame rate (slow motion)30 fps vs 120 fps4×
- Main screen size0.5″ vs 2.29″4.6×
- Max field of view45° vs 154°3.4×
- Battery capacity1,050 mAh vs 1,250 mAh+19%
- Depth27 mm vs 25.5 mm+6%
Specifications
Side by side
| Design & durability | ||
| Weight | — | 54 g |
| Width | 68 mm | 68 mm |
| Height | 34 mm | 32 mm |
| Depth | 27 mm | 25.5 mm |
| Waterproof without case | — | 0 m |
| Waterproof with housing | — | 30 m |
| Ingress protection | IPX6 | — |
| Video | ||
| Max video resolution | 4K | 4K |
| 4K frame rate (max) | 30 fps | 30 fps |
| Max frame rate (slow motion) | 30 fps | 120 fps |
| Timelapse / hyperlapse | — | Yes |
| Pre-recording (HindSight / Pre-Rec) | — | Yes |
| Sensor & photo | ||
| Sensor size | 1/1.3" | 1/2.8" |
| Sensor size (optical format) | 0.77″ | 0.36″ |
| Photo resolution | — | 16 MP |
| Aperture | — | f/2 |
| Max field of view | 45° | 154° |
| Stabilisation | ||
| Stabilisation system | — | 6-Achsen Stabilisation, HorizonSteady |
| Electronic image stabilisation | — | Yes |
| 360° horizon lock | — | Yes |
| Screens | ||
| Main screen size | 0.5″ | 2.29″ |
| Touchscreen | Yes | Yes |
| Audio | ||
| External microphone support | — | Yes |
| Battery | ||
| Battery capacity | 1,050 mAh | 1,250 mAh |
| Battery energy | — | 4.8 Wh |
| Battery life (recording) | 180 min | — |
| Connectivity | ||
| Wi-Fi | — | Yes |
| Bluetooth | — | Yes |
| Webcam mode | — | Yes |
| Live streaming | — | Yes |
| Storage & features | ||
| microSD card slot | — | Yes |
| Max memory card | — | 512 GB |
