Potensic Atom 2 vs Holy Stone HS900 Sirius
Both are under the 250-gram line, so the legal position is identical and the decision comes down to the rows tinted below — the specs where these two actually differ. The Holy Stone HS900 Sirius is the cheaper of the two at ~$420.
| Drone | ||
|---|---|---|
| Bundle price | ~$449multi-battery bundle | ~$420multi-battery bundle |
| True first-year price | ~$449 | ~$420 |
| Flight min per $100 | 7.1 | 7.1 |
| Rating | No cited rating | No cited rating |
| Takeoff weight | 249 g | 249 g |
| FAA registration | Not required | Not required |
| Remote ID | Not published | Built-in |
| Sensor size | 1/2" | 1/2.3" |
| Sensor area | 30.7 mm² | 28.1 mm² |
| Megapixels | 48 MP | 48 MP |
| Max video | 4K/30fps HDR | 4K/30fps |
| Colour depth | 8-bit | 8-bit |
| Log profile | — | — |
| Gimbal | 3-axis | 3-axis |
| Obstacle sensing | None | None |
| Claimed flight time | 32 min | 30 min |
| Tested flight time | 20 min | 22 min |
| Battery | — | — |
| Transmission | PixSync 4.0 | 5.8 GHz Wi-Fi |
| Max range | 10 km | 6 km |
| Max speed | 36 mph | 36 mph |
| Wind resistance | Level 5 (10.7 m/s) | Level 5 (10.7 m/s) |
| Service ceiling | — | — |
| Internal storage | None | None |
| Controller | Potensic controller (phone required); RC PTD 1 with a screen as an upgrade | Holy Stone controller (phone required) |
| Return to home | Yes | Yes |
| Geofencing | No | No |
| Care plan (1 yr) | Not in our snapshot | Not in our snapshot |
| US availability | Sold | Sold |
| Released | 2025 | 2024 |
| Flight claim measured at | Potensic advertises up to 32 minutes. A Potensic spokesperson told a reviewer that typical real-world flight time is around 20 minutes depending on flying style and conditions, and that reviewer could not exceed 20 minutes on any test flight. | Holy Stone quotes up to 30 minutes on the 2,250 mAh pack; a reviewer measured about 22 minutes in real flying. |
Potensic Atom 2
Potensic's pitch is simple arithmetic: a three-axis gimbal, a 10 km link, waypoints and subject tracking for the price DJI charges for a Mini 4K with none of those things. The 1/2-inch 48MP sensor is genuinely smaller than the Mini's 1/1.3-inch chip, so the footage is a step behind in anything but good light, but the stabilisation is real and vertical shooting is supported. The flight-time claim is where this entry earns its place in the catalog: the box says 32 minutes, a reviewer could not get past 20 on any flight, and Potensic's own spokesperson put typical real-world endurance at around 20 minutes. That is the most clearly documented gap between claim and reality anywhere in this dataset, and it is worth knowing before you plan a session around three batteries. Two things to check before ordering: whether the Fly More bundle is genuinely cheaper than buying batteries later, because the discount varies week to week; and whether you need the screened RC PTD 1 controller, because the base kit's controller needs your phone and your phone's battery.
Full spec sheet →Holy Stone HS900 Sirius
Holy Stone spent years making competent toys and then built this, which is the first of their aircraft that invites comparison with a Mini rather than with a hobby quadcopter. Three-axis brushless gimbal, a 48MP 1/2.3-inch Sony sensor, 6 km of transmission, subject tracking, built-in Remote ID and 249 grams on the nose. Reviewers have been noticeably warmer about it than about anything else in the brand's catalog. The gaps are still real: no obstacle sensing in any direction, a fixed-focus f/2.6 lens, and a measured 22 minutes against a 30-minute claim. At roughly half a Mini 4 Pro's price with a real gimbal and real Remote ID, though, it is the most credible budget alternative here.
Full spec sheet →