
Deerc D20 Blue
Score: 79/100
Holy Stone HS440G
Score: 76/100Rankings

The DEERC D20 provides a lightweight, feature-rich mini drone with a 720 p camera, dual batteries for up to 20 minutes total flight and robust accessories. Its limitations are a modest 40 m transmission range and no onboard storage, making it ideal for beginners seeking basic aerial video.

The Holy Stone HS440G offers a 4K camera, GPS-based navigation and brushless motors in a sub-250 g foldable frame. Its battery life of 23 minutes and modest wind resistance are trade-offs for the advanced features. Best suited for beginners who want GPS stability without registration.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 1,700 mAhbest | |
10 minutes | 23 minutesbest | |
| ↓ lower better | 69 gbest | 154 g |
40 m | 500 mbest | |
| ↓ lower better | 80 minutesbest | 180 minutes |
— | 8 MPbest | |
— | 120 mbest | |
80 ° | 120 °best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Flight Performance(1) | ||
Control Range (m) | 40 m | 500 m |
Battery & Power(3) | ||
Flight Time (minutes) | 10 minutes | 23 minutes |
Charging Time (minutes) | 80 minutes | 180 minutes |
Battery Type | Lithium Polymer | Lithium-ion Polymer |
Build & Design(2) | ||
Weight (g) | 69 g | 154 g |
Dimensions (L×W×H) (cm) | 19.6×16.2×4.3 cm cm | 5.0×20.0×27.0 cm cm |
Camera(2) | ||
Video Resolution | 720p | 4K |
Field of View (°) | 80 ° | 120 ° |


Products in the top-left offer the best value (high score, low price).

Professional reviewers consistently commend the DEERC D20 for its ruggedness and beginner-oriented feature set, emphasizing the value of dual batteries and the variety of flight modes. However, they note the absence of onboard storage and the modest range as notable drawbacks for more advanced use.
Everyday users love how easy the D20 is to fly, especially the one-key takeoff and altitude hold, and appreciate its durability and the generous accessories bundle. The most common frustrations revolve around the short flight time, limited range, and lack of a microSD slot for video storage.

Professional reviewers consider the HS440G an ideal entry-level GPS drone, emphasizing its stable flight thanks to GPS and optical flow, the high-quality 4K camera, and the convenience of a foldable, sub-250g design that avoids registration. They also commend the brushless motors for durability, while noting the drone's lightweight nature limits wind resistance and long-range performance.
Everyday users consistently praise the HS440G for its portability, easy-to-use controls, and clear 4K footage, appreciating the no-registration advantage. Common criticisms focus on limited wind tolerance, modest battery life, and the need to purchase additional accessories like a TF card and AAA batteries for remote control.
“no chips, no damage”

“really cool”


