Flywoo Flybee 20 HD (HDZero)
Flywoo
Open-prop 2S toothpick — a ductless FlyLens 85 for outdoor cruising, not indoor whoop flying
The Flybee 20 HD is the 2-inch, 85mm big brother of the Flybee 16: an open-prop 2S toothpick-style with genuine HDZero video. At 47.6g bare it is essentially a ductless FlyLens 85, trading indoor whoop safety for efficiency, speed, and longer flights.
The full story
The build pairs an HDZero Whoop Lite and RunCam Nano V3 (MIPI) camera with Flywoo's GOKU F405 HD 1-2S V2 (STM32F405, ICM42688P gyro) on a 2-inch carbon X-frame. ROBO 1003 14800KV motors — the same motors as the Flybee 16 — swing much larger Gemfan 2015 bi-blade props, which is where the extra efficiency comes from.
It is an open-prop pusher, not a whoop: exposed props favor efficiency, speed, and quiet at the cost of indoor and around-people safety, and the low-slung pusher props complicate takeoffs, landings, and turtle-mode recovery. Flywoo quotes 5:30 on a 2S 550mAh and 7:30 on a 750mAh — notably longer than the 1.6-inch sibling on the same packs.
The control link is a serial () 2.4GHz receiver that updates through the ExpressLRS Configurator, with a TBS Crossfire build also sold. It runs standard XT30 2S packs and ships with 550/750/1000mAh TPU mounts, spare props, hardware, and a screwdriver.
Pros & cons
Pros
- Genuine COFDM HDZero video (Whoop Lite + RunCam Nano V3) for HDZero-goggle pilots
- 2-inch props on the same weight as the Flybee 16 give notably better efficiency and flight time
- Serial (UART) ExpressLRS 2.4GHz receiver that updates via the ExpressLRS Configurator
Show all 5 pros
- Runs standard XT30 2S packs and ships with TPU mounts for three pack sizes, spare props, and tools
- Light for its class — essentially a ductless FlyLens 85 over 20g lighter
Cons
- No ducts and fully exposed props make it a poor choice for indoor flying or flying near people
- Low-slung pusher props sit close to the ground, complicating takeoffs, landings, and turtle-mode flips
- 720p60 HDZero video trails DJI O4 in resolution; requires HDZero goggles
Show all 5 cons
- 85mm with open 2-inch props needs more room than a true ducted whoop
- Thin retail coverage — Flywoo direct is the main source, and the only GetFPV listing is a TBS (non-ELRS) build
Specs
Retailers & price history
| Retailer | Current | Stock | Lowest confirmed | Highest confirmed | Checked |
|---|---|---|---|---|---|
| Flywoo (direct) | $279.99 | In stock | $279.99 (2026-08-17) | $279.99 (2026-08-17) | 2026-08-19 |
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 |
|---|---|---|
| Tattu 2S 450mAh 95C LiHV (Long Type, XT30) $ 2S 450mAh 95C LiHV · XT30 · 62.5×16.2×14.7mm long pack · JST-XH balance |
$7.99 | In stock at ProgressiveRC (Seattle) |
| Gaoneng GNB 2S 550mAh 100C LiHV (XT30) $$ 2S 550mAh 100C LiHV · XT30 · 29g · 12×18×69mm long pack · JST-XH balance |
$10.49 | In stock at RaceDayQuads |
| Flywoo Explorer 2S 550mAh 80C LiHV (2-pack, XT30UP) $$$ 2S 550mAh 80C LiHV · XT30UP (XT30-compatible Amass-sheath pigtail) · sold as 2-pack |
$20.99 | In stock at Flywoo (direct) |
Props
| Part | Price | Availability |
|---|---|---|
| Gemfan 2015 bi-blade 51mm props (1.5mm shaft, 8pk) Gemfan 2015 bi-blade · 51mm (2") · 1.5mm shaft · 8 pack |
$3.99 | In stock at NewBeeDrone |
| Gemfan Durable 2015-2 Bi-Blade 2" Prop (1.5mm shaft) 2015 bi-blade · 2" / 1.5" pitch · 1.5mm press-fit shaft · 8 pack |
$4.99 | In stock at RaceDayQuads |
Motors
| Part | Price | Availability |
|---|---|---|
| ROBO 1003 14800KV motor 1003 14800KV · 1-2S · 1.5mm shaft · 3.3g · sold per motor (5-pack at Flywoo) |
$13.99 | In stock at Flywoo (direct) |
Camera
| Part | Price | Availability |
|---|---|---|
| RunCam / HDZero Nano V3 HD Camera HDZero Nano V3 · 720p60 · MIPI · 14mm mount (RDQ SKU ships without MIPI cable — reuse yours) |
$56.99 | In stock at NewBeeDrone |
Video
| Part | Price | Availability |
|---|---|---|
| HDZero Whoop Lite V2 VTX Whoop Lite 5.8GHz HD VTX · 720p60 · 25/200mW · 25.5x25.2 M2 mount (V2 is the current revision) |
$63.99 | In stock at HDZero.us |
| HDZero Whoop Lite VTX HDZero Whoop Lite · 720p60 · 25/200mW · 25.5x25.5 mount · u.FL · MIPI camera input |
$77.00 | Sold out at TinyWhoop.com |
Flight controller
| Part | Price | Availability |
|---|---|---|
| GOKU F405 HD V2 1-2S 12A AIO (serial ELRS 2.4GHz) F405 · 12A BLHeli_S 4-in-1 ESC · serial ELRS 2.4G · 9V BEC · baro + 8MB blackbox · 25.5x25.5 |
$89.99 | In stock at RaceDayQuads |
Chargers
| Part | Price | Availability |
|---|---|---|
| Flywoo EasyPower E24 2S Battery Charger EasyPower E24 · Flywoo's OEM 2S charger for Explorer XT30UP packs (E16/E24 listing; E24 = 2S model) |
$29.99 | In stock at Flywoo (direct) |
| ToolkitRC M450 50W Mini Balance Charger (2S-4S) 50W 5A mini balance charger · charges 2S packs via their JST-XH balance lead (the standard on all XT30 2S whoop packs) |
$47.99 | In stock at RaceDayQuads |