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- AC4K 120 vs SJ8 Plus
Renkforce AC4K 120 vs SJCAM SJ8 Plus
What AC4K 120 does better (3) and where SJ8 Plus wins (5) — every spec side by side.
Dimensions
Size comparison
AC4K 120SJ8 Plus
| AC4K 120 | SJ8 Plus | Difference | |
|---|---|---|---|
| Height | 41 mm | 41 mm | = |
| Width | 59 mm | 62.5 mm | −3.5 mm |
| Depth | 24.5 mm | 28.8 mm | −4.3 mm |
| Weight | 64 g | 85 g | −21 g |
Drawn to the same scale from the official dimensions (front and side).
Why is AC4K 120 better than SJ8 Plus?
- Battery life (recording)180 min vs 90 min2×
- Weight64 g vs 85 g+33%
- Depth24.5 mm vs 28.8 mm+18%
Why is SJ8 Plus better than AC4K 120?
- 4K frame rate (max)10 fps vs 30 fps3×
- Max frame rate (slow motion)10 fps vs 240 fps24×
- Photo resolution2 MP vs 12 MP6×
- Battery capacity900 mAh vs 1,200 mAh+33%
- Main screen size2″ vs 2.3″+15%
Specifications
Side by side
| Design & durability | ||
| Weight | 64 g | 85 g |
| Width | 59 mm | 62.5 mm |
| Height | 41 mm | 41 mm |
| Depth | 24.5 mm | 28.8 mm |
| Waterproof without case | 0 m | 0 m |
| Waterproof with housing | 30 m | 30 m |
| Ingress protection | IP68 | — |
| Video | ||
| Max video resolution | 4K | 4K |
| 4K frame rate (max) | 10 fps | 30 fps |
| Max frame rate (slow motion) | 10 fps | 240 fps |
| H.265 / HEVC | — | Yes |
| Timelapse / hyperlapse | Yes | — |
| Sensor & photo | ||
| Photo resolution | 2 MP | 12 MP |
| Max field of view | 140° | — |
| RAW photos | — | Yes |
| Stabilisation | ||
| Stabilisation system | — | Elektronischer Bildstabilisator (EIS) |
| Electronic image stabilisation | Yes | Yes |
| Screens | ||
| Front screen | — | Yes |
| Main screen size | 2″ | 2.3″ |
| Touchscreen | — | Yes |
| Battery | ||
| Battery capacity | 900 mAh | 1,200 mAh |
| Battery life (recording) | 180 min | 90 min |
| Connectivity | ||
| Wi-Fi | Yes | Yes |
| Webcam mode | Yes | — |
| Storage & features | ||
| microSD card slot | Yes | Yes |
