Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Insta360 - GO 3S | Sony - HDR-AS300 |
|---|---|---|
| Waterproof depth | 10 m | 60 m |
| Max 4K fps | 30 | 60 |
| Horizon lock | true | false |
| Max video | 4K30 | 4K60 |
Between the GO 3S and HDR-AS300, the GO 3S comes out ahead in horizon lock, while the HDR-AS300 wins on waterproof depth / max 4k fps. Overall, the GO 3S scores 62.2 and the HDR-AS300 scores 65 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (62.2 vs 65). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the GO 3S if you care most about horizon lock. The biggest gaps in its favor are horizon lock. The single most decisive one: Has Horizon lock.
Pick the HDR-AS300 if you care most about waterproof depth / max 4k fps. Its strongest claims are waterproof depth, max 4k fps, max video. The single most decisive one: Waterproof depth — 500.00% more. 60 m vs 10 m.
Both ship with comparable stabilization, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Insta360 - GO 3S or Sony - HDR-AS300?
Sony - HDR-AS300 leads the current Mars Score by 2.8 points.The more useful decision is the trade-off behind that result: compare max video, max 4k fps, waterproof depth against the way you will actually use the product.
Choose Insta360 - GO 3S if…
Insta360 - GO 3S has the measurable edge on has horizon lock.
Choose Sony - HDR-AS300 if…
Sony - HDR-AS300 has the measurable edge on water depth m, max fps 4k, max video.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Insta360 - GO 3S wins
- ▲Has Horizon lock.
Why Sony - HDR-AS300 wins
- ▲Waterproof depth — 500.00% more. 60 m vs 10 m.
- ▲Max 4K fps — 100.00% more. 60 vs 30.
- ▲Max video: 4K60 (vs 4K30).
Spec comparison
Video
| Spec | Insta360 - GO 3S | Sony - HDR-AS300 |
|---|---|---|
| Max video | 4K30 | 4K60lead |
| Max 4K fps | 30 | 60lead |
| HDRⓘ | false | false |
| Log profileⓘ | false | false |
Stabilization
| Spec | Insta360 - GO 3S | Sony - HDR-AS300 |
|---|---|---|
| Horizon lock | truelead | false |
| Stabilization | advanced | advanced |
Durability
| Spec | Insta360 - GO 3S | Sony - HDR-AS300 |
|---|---|---|
| Waterproof depth | 10 m | 60 mlead |
| Weight | 39 glead | 109 g |
| Removable lens | truelead | false |