Flywoo FlyLens 85 HD O4
Flywoo
85mm 2S — full prop rings, O4 camera
Flywoo's 85mm 2S pusher whoop built around the standard DJI O4 Air Unit — one of the lightest 2-inch O4 drones at 68.8g without battery. Full injection-molded prop rings and onboard 4K/60 recording make it a protected micro for pilots flying DJI digital video.
Street pricing sits at the premium end of the 85mm whoop class and varies widely by vendor and receiver option; the TBS Crossfire variant carries a further premium over the ELRS version.
The 12A BLHeli_S ESC ships with Bluejay 48kHz firmware; Flywoo warns that flashing 96kHz firmware can cause motor-idle and stall issues.
The full story
Released in early 2025, the FlyLens 85 HD O4 mounts the standard DJI O4 Air Unit in a carbon frame with PC injection-molded prop guards. ROBO 1003 14,800KV motors spin reverse-mounted Gemfan 2015 bi-blade props in a pusher layout, and a three-point damped camera platform keeps footage jello-free — reviews of the FlyLens 85 platform confirm smooth results, though they also found it notably loud, especially indoors.
The standard O4 unit records 4K/60 at 100Mbps onboard, so no separate HD camera is needed, but storage is the unit's fixed internal memory — roughly 24GB, about 30 minutes of 4K — with no microSD slot. Compared with the O4 Pro version of this same quad, it has a smaller 1/2-inch sensor, a narrower 117.6-degree , 4K capped at 60fps, a single antenna, and lower transmit power.
Electronics are well-specced for the class: a GOKU F405 HD 1-2S with an F405 BGA MCU, ICM42688P gyro, six UARTs, DPS310/SPL06 barometer, 8MB blackbox, and a 9V 2A with a software power cut-off switch. The 12A BLHeli_S runs Bluejay 48kHz firmware with bidirectional DShot and RPM filtering, and the onboard 2.4GHz receiver is true serial (Flywoo EL24P on UART1), flashable through the Configurator rather than an receiver.
A quick-release battery bay with TPU mounts takes 2S 550, 750, or 1000mAh packs on a reinforced XT30UP strain-relief connector to trade weight for flight time — Flywoo claims 9 minutes on a 1000mAh and 7.5 on a 750mAh, though platform reviews land well below that. The box includes eight spare 2015-2 props, an O4 UV lens filter, a 90-degree Type-C data cable, a screwdriver, and hardware, and it sells in ELRS 2.4GHz, TBS Crossfire, and receiver-less DJI variants.
Pros & cons
Pros
- One of the lightest 2-inch DJI O4 quads sold, at a manufacturer-stated 68.8g without battery
- Onboard 4K/60 (100Mbps) recording from the DJI O4 air unit, so no separate HD camera is needed
- Genuine serial (UART) ELRS 2.4GHz receiver onboard (Flywoo EL24P on UART1) - flashable via ExpressLRS Configurator, not an SPI receiver
Show all 10 pros
- Quick-release battery bay with included TPU mounts for 2S 550/750/1000mAh packs lets you trade weight for flight time
- Long claimed endurance: 9 min on a 2S 1000mAh and 7.5 min on a 750mAh
- Three-point damped/CNC camera platform produces jello-free footage, confirmed smooth in reviews of the FlyLens 85 platform
- Well-specced AIO: F405 BGA MCU, 6 UARTs, DPS310/SPL06 barometer, 8MB blackbox, 9V 2A BEC with software VTX power cut-off switch, Bluejay 48kHz ESC firmware with bidirectional DShot/RPM filtering
- XT30 battery connector with reinforced Flywoo XT30UP strain-relief sheath
- Complete kit: 8 spare 2015-2 props, O4 UV lens filter, 90-degree Type-C data cable, screwdriver, and hardware set included
- Sold in ELRS 2.4GHz, TBS Crossfire, and receiver-less DJI PNP variants at major US vendors
Cons
- Uses the standard DJI O4 unit, not the O4 Pro: smaller 1/2-inch sensor, narrower 117.6-degree FOV, 4K capped at 60fps, single antenna, and lower transmit power than the O4 Pro version of this same quad
- Real-world flight times in reviews of the FlyLens 85 platform run well below the 9-minute claim (about 5 minutes on a 2S 1000mAh with the heavier O4 Pro build)
- Reviewers found the FlyLens 85 notably loud, especially indoors
Show all 8 cons
- Camera angle adjustment range is limited by the mount's screw positions
- Battery holder system described as fidgety in review
- O4 recording is limited to the unit's fixed internal memory (roughly 24GB, about 30 minutes of 4K) with no microSD slot
- Expensive for an 85mm whoop, with the TBS Crossfire variant carrying a further premium
- BLHeli_S 12A ESC ships with Bluejay 48kHz and Flywoo warns against flashing 96kHz firmware due to motor-idle/stall issues
Specs
Retailers & price history
| Retailer | Current | Stock | Lowest confirmed | Highest confirmed | Checked |
|---|---|---|---|---|---|
| NewBeeDrone | $335.99 | In stock | $335.99 (2026-07-02) | $335.99 (2026-07-02) | 2026-07-04 |
| RaceDayQuads | $311.99 | In stock | $311.99 (2026-07-02) | $311.99 (2026-07-02) | 2026-07-04 |
| Pyrodrone | $389.99 | In stock | $389.99 (2026-07-02) | $389.99 (2026-07-02) | 2026-07-04 |
| Flywoo (direct) | $319.99 | In stock | $319.99 (2026-07-04) | $319.99 (2026-07-04) | 2026-07-04 |
| GetFPV | $337.99 | In stock | $337.99 (2026-07-04) | $337.99 (2026-07-04) | 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 |
|---|---|---|
| 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 |
| BetaFPV LAVA 2S 550mAh 75C Battery (2-pack, XT30) $$ 2S 550mAh 75C · XT30 (16AWG) · 29.5g · 67×15.5×13.5mm · JST-XH2.54 balance · sold as 2-pack |
$19.99 | In stock at BetaFPV (direct) |
| Flywoo Explorer 2S 750mAh 80C LiHV (2-pack, XT30UP) $$$ 2S 750mAh 80C LiHV · XT30UP (XT30-compatible) · 35.4g · sold as 2-pack |
$23.99 | 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 |
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) |
Frames
| Part | Price | Availability |
|---|---|---|
| FlyLens 85 V1.3 frame kit — O3lite/O4 V1.3 85mm frame kit · injection-molded ring · O3lite/O4 air unit fit |
$24.99 | In stock at Flywoo (direct) |
Video
| Part | Price | Availability |
|---|---|---|
| DJI O4 Air Unit DJI O4 Air Unit · 8.2g · 1/2" sensor · 4K/60 onboard recording |
$139.00 | In stock at Pyrodrone |
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 |
Other spares
| Part | Price | Availability |
|---|---|---|
| FlyLens 75/85 CNC camera bracket (14/18/20mm + O4 Pro) CNC camera bracket · pick 14mm (HDZero Nano), 18mm (O4), 20mm (HDZero Micro) or O4 Pro |
$3.99 | In stock at Flywoo (direct) |
| FlyLens 85 prop guard (protective ring) Replacement PC protective ring for 85mm frame · clear/clear-black/red/green |
$4.99 | In stock at Flywoo (direct) |
| Flywoo O4 Air Unit cooling CNC kit 6061 aluminum heatsink case for DJI O4 Air Unit · 5.1g · 20x20 + 25.5x25.5 mounts |
$9.99 | In stock at Flywoo (direct) |