Happymodel Mobula6 Race HD
Happymodel
Indoor race trainer
The Mobula6 Race HD is a 65mm 1S brushless tiny whoop and the definitive low-inertia indoor reflex/race trainer in the ecosystem — the first HD brushless whoop under 19.4g, pairing near-analog weight and agility with native digital video.
Owners have reported the AIO5's VTX overheating and degrading or cutting video within seconds, even at cool ambient temperatures. Community mitigations include canopy airflow cuts, running at 25mW, and a firmware update supplied by Happymodel.
The ELRS receiver is SPI-based with firmware baked into Betaflight rather than flashable ExpressLRS: it stays at v3.0 protocol features with limited telemetry (<12dBm), the radio must be kept on compatible ELRS v3.x firmware, and receiver-side updates are far more limited than UART ELRS.
Street pricing at in-stock US retailers has run well above MSRP.
The full story
The heart of the build is the HDZero AIO5, the first single-board 5-in-1 : flight controller, 4-in-1 , HDZero , 2.4GHz receiver, and on one thick PCB. Replacing the usual two-board stack improves durability and simplicity, and the lightweight HDZero Eco camera feeds HD composite video over a single wire rather than a fragile MIPI ribbon cable. The result is the first HD brushless whoop under 19.4g — 19.3g bare.
That low mass is the point: it bounces off walls and furniture instead of breaking parts, making it ideal for indoor reflex and race training. It is an indoor and calm-air machine, not an outdoor quad — as a 65mm 1S whoop it is easily blown around by any wind — and flight time is short, officially around 2.5-3 minutes on the recommended 1S 300mAh pack.
Video is native HDZero 720p60 in 4:3 with near-zero fixed latency, pairing directly with HDZero goggles such as the BoxPro+; the AIO5 keeps transmitting down to 2.5V so video never cuts before the motors quit, and the VTX switches between 25mW and 200mW with a u.FL antenna connector. The Eco is the budget camera of the pair — 1/3-inch sensor, 4:3 only, no — visibly weaker in image and low light than the Lux on the 0.6g-heavier Mobula6 Freestyle HD.
It arrives true : the built-in SPI ELRS 2.4GHz receiver ( v3.0, 25-500Hz packet rates) binds to any ELRS 2.4GHz radio out of the box, with Betaflight 4.4.2, Bluejay ESC firmware, and onboard blackbox from the factory. Mobula6-platform spares — canopies, frames, SE0702 motors, 31mm props — are widely stocked; a spare canopy and props ship in the box, and the AIO5 replacement board is sold separately.
Pros & cons
Pros
- Lightest HD whoop class at 19.3g bare — low inertia means it bounces off walls and furniture instead of breaking parts, ideal for indoor reflex/race training
- Single thick-PCB AIO5 replaces a two-board stack, improving durability and simplicity; the Eco camera feeds HD composite video over a single wire instead of a fragile MIPI ribbon cable
- Native HDZero 720p60 4:3 video with near-zero fixed latency pairs directly with HDZero BoxPro+ goggles; the AIO5 keeps transmitting down to 2.5V so video never cuts before the motors quit
Show all 6 pros
- Built-in SPI ELRS 2.4GHz (ExpressLRS v3.0, 25-500Hz packet rates) binds to any ELRS 2.4GHz radio out of the box — no receiver install, true BNF with Betaflight 4.4.2, Bluejay ESC firmware, and onboard blackbox from the factory
- Switchable 25mW/200mW VTX output with u.FL antenna connector covers both multi-pilot indoor race etiquette and range headroom
- Mobula6-platform spares (canopies, frames, SE0702 motors, 31mm props) are widely stocked, a spare canopy and props ship in the box, and the AIO5 replacement board is sold separately
Cons
- The Eco camera is the budget option: 1/3-inch sensor, 4:3 only, no WDR — visibly weaker image and low-light performance than the Lux camera on the 0.6g-heavier Mobula6 HD
- SPI ELRS receiver firmware is baked into Betaflight rather than flashable ExpressLRS — it stays at v3.0 protocol features with limited telemetry (<12dBm), so your ELRS radio must be kept on compatible ELRS v3.x firmware and receiver-side updates are far more limited than ELRS
- Owners have reported AIO5 VTX overheating that degrades or kills video within seconds even at cool ambient temperatures — community mitigations are canopy airflow cuts, running 25mW, or a firmware update supplied by Happymodel
Show all 5 cons
- Short flight time: officially around 2.5-3 minutes on the recommended 1S 300mAh pack
- Street price has crept well above the $189.99 MSRP, and as a 65mm 1S whoop it is easily blown around by any wind
Specs
Retailers & price history
| Retailer | Current | Stock | Lowest confirmed | Highest confirmed | Checked |
|---|---|---|---|---|---|
| HDZero.us | $225.99 | In stock | $225.99 (2026-07-02) | $225.99 (2026-07-02) | 2026-07-04 |
| RaceDayQuads | $227.99 | In stock | $227.99 (2026-07-02) | $227.99 (2026-07-02) | 2026-07-04 |
| Rotorama (EU) | €214.79 | In stock | — | — | 2026-07-02 |
| HDZero.com | $189.99 | Sold out | $189.99 (2026-07-04) | $189.99 (2026-07-04) | 2026-07-04 |
| GetFPV | $246.99 | In stock | $246.99 (2026-07-04) | $246.99 (2026-07-04) | 2026-07-04 |
| Pyrodrone | $235.99 | In stock | $235.99 (2026-07-02) | $235.99 (2026-07-02) | 2026-07-04 |
Current = cheapest ready-to-fly configuration (video system included, ELRS) tracked at that retailer; sold-out rows show the last listed price. Lowest/highest are from every confirmed scan since 2026-07-02 — the log grows with each stock check.
Replacement parts & batteries
Crash spares that fit this model, checked against the shops like everything else. Batteries show three price tiers — $ lowest, $$ middle, $$$ highest — among compatible in-stock packs.
Batteries
| Part | Price | Availability |
|---|---|---|
| Sub250 1S 300mAh 75C LiHV (A30) $ 1S 300mAh 75C LiHV · A30 · 8.4g |
$4.99 | In stock at Sub250 (direct) |
| GNB 1S 300mAh 60C LiHV (A30, cabled) $$$ 1S 300mAh 60C LiHV · A30 cabled · 7g |
$5.99 | In stock at Pyrodrone |
Props
| Part | Price | Availability |
|---|---|---|
| Gemfan 1210 bi-blade 31mm props (1mm shaft, 8 pack) Gemfan 1210 31mm bi-blade · 1in pitch · 1mm shaft · 8 pack (4CW+4CCW) |
$3.29 | In stock at NewBeeDrone |
| Gemfan 1208-3 tri-blade 31mm props (1mm shaft, 8 pack) Gemfan 1208-3 31mm tri-blade · 0.8in pitch · 1mm shaft · 8 pack (4CW+4CCW) |
$3.29 | In stock at NewBeeDrone |
| Gemfan 1219-3 tri-blade 31mm props (1mm shaft, 8 pack) Gemfan 1219-3 31mm tri-blade · 1.9in pitch · 1mm shaft · 8 pack (4CW+4CCW) |
$4.99 | In stock at RaceDayQuads |
Motors
| Part | Price | Availability |
|---|---|---|
| Happymodel SE0702 28000KV motor SE0702 28000KV · 1mm shaft · 1.5g · sold per motor (choose CW/CCW) |
$10.99 | In stock at RaceDayQuads |
Frames
| Part | Price | Availability |
|---|---|---|
| Happymodel Mobula6 Race HD 65mm Ultra Light frame 65mm ultra-light whoop frame · transparent · for Race HD / Freestyle HD |
$6.99 | In stock at Pyrodrone |
Canopies
| Part | Price | Availability |
|---|---|---|
| Happymodel Mobula6 Race HD camera mount bracket PP camera mount bracket · 0.6g · adjustable camera angle · incl. 2x M1.2x5 screws |
$6.99 | In stock at Pyrodrone |
Camera
| Part | Price | Availability |
|---|---|---|
| HDZero Eco camera HDZero Eco · 1/3in sensor · 720p60 4:3 · 98° vertical FOV · HD composite out |
$32.99 | In stock at HDZero.us |
Flight controller
| Part | Price | Availability |
|---|---|---|
| HDZero AIO5 (FC + ESC + HDZero VTX + ELRS RX) AIO5: F411 FC · 5A BLHeli_S 4-in-1 ESC · HDZero 5.8GHz VTX 25/200mW · SPI ELRS 2.4GHz · 25.5mm mount |
$114.99 | In stock at HDZero.us |
Chargers
| Part | Price | Availability |
|---|---|---|
| Sub250 CW1 1S Charger (A30 + PH2.0) 1S LiPo/LiHV charger · native A30 + PH2.0 ports · USB-C input · voltage display + full-charge buzzer |
$10.99 | In stock at Sub250 (direct) |
| Flywoo 6-Port 1S Battery Charger (A30/PH2.0) 6-port 1S LiPo/LiHV charger board · native A30 + PH2.0 · 4.2V/4.35V selectable |
$19.99 | Sold out at GetFPV |