Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Sony - HDR-AS300 | Sony - RX0 II |
|---|---|---|
| Waterproof depth | 60 m | 10 m |
| Max 4K fps | 60 | 30 |
| Max video | 4K60 | 4K30 |
Between the HDR-AS300 and RX0 II, the HDR-AS300 comes out ahead in waterproof depth / max 4k fps, while the RX0 II wins on several specs. Overall, the HDR-AS300 scores 65 and the RX0 II scores 50.6 on our Mars Score.
Which should you buy?
The HDR-AS300 is the clear pick on raw spec strength, leading by 14.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the HDR-AS300 if you care most about waterproof depth / max 4k fps. The biggest gaps in its favor are waterproof depth, max 4k fps, max video. The single most decisive one: Waterproof depth — 500.00% more. 60 m vs 10 m.
The RX0 II similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable stabilization, horizon lock, so those specs do not separate the two — focus on the differences below.
Bottom line: the HDR-AS300 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Sony - HDR-AS300 or Sony - RX0 II?
Sony - HDR-AS300 leads the current Mars Score by 14.4 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 Sony - HDR-AS300 if…
Sony - HDR-AS300 has the measurable edge on water depth m, max fps 4k, max video.
Choose Sony - RX0 II if…
Sony - RX0 II does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
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 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).
Why Sony - RX0 II wins
- No decisive advantages.
Spec comparison
Video
| Spec | Sony - HDR-AS300 | Sony - RX0 II |
|---|---|---|
| Max video | 4K60lead | 4K30 |
| Max 4K fps | 60lead | 30 |
| HDRⓘ | false | truelead |
| Log profileⓘ | false | truelead |
Stabilization
| Spec | Sony - HDR-AS300 | Sony - RX0 II |
|---|---|---|
| Horizon lock | false | false |
| Stabilization | advanced | advanced |
Durability
| Spec | Sony - HDR-AS300 | Sony - RX0 II |
|---|---|---|
| Waterproof depth | 60 mlead | 10 m |
| Weight | 109 glead | 132 g |
| Removable lens | false | false |