Sub250 Oasisfly25 O4: Smaller Frame, Same Performance—But Is It Worth It?

Alex -

The sub250 Oasisfly25 O4 offers a compact alternative to the three-inch version. This article breaks down its performance, handling, and potential pitfalls, making it essential reading for FPV enthusiasts considering a smaller quad.

Dimensions and Design: What’s the Difference?

At first glance, the Oasisfly25 O4 appears similar to its three-inch counterpart. The primary differences lie in the frame dimensions and prop sizes—everything else, including the motor and flight stacks, remains consistent. This uniformity suggests that performance should be largely comparable, but can a smaller frame really deliver the same thrills?

Wind Resistance and Flight Performance

Wind conditions during testing were less than ideal, with gusts ranging from ten to seventeen miles per hour. However, the two-and-a-half-inch frame held its own, proving resilient against the elements. This robustness is crucial for those who often fly in less-than-perfect weather.

Flight times varied based on battery choice. Using a 650mAh GNB 4S battery yielded approximately five and a half minutes of flight, while an 850mAh battery extended that to almost eight minutes. The results suggest that the Oasisfly25 O4 balances power and endurance effectively.

Crash Dynamics: Learning from Mistakes

Every pilot knows that crashes are part of the game. During testing, a dramatic crash occurred, but thankfully, the quad emerged unscathed—no bent props or major damage. This incident underscores the importance of robust design in smaller quads, where durability can often be a concern.

Tuning and Responsiveness: A Closer Look

The tuning on the Oasisfly25 O4 impressed, particularly when handling prop wash. This model seems to manage tricky manoeuvres better than the three-inch version, thanks to its smaller size and the specific motor configuration. The 1404 motors do a commendable job here—offering more responsive handling without sacrificing stability.

Comparing Prop Sizes: The 2.5 vs. 3 Inch Debate

When weighing the benefits of two-and-a-half-inch versus three-inch props, the former offers a more agile flying experience, especially in confined spaces. However, three-inch quads tend to provide better punch-outs and longer flight times. For those who prioritise performance in smaller areas, the Oasisfly25 O4 is a solid choice.

Practical Considerations: Battery Connections and Durability

Despite its impressive features, the Oasisfly25 O4 has room for improvement. One notable concern is the lack of strain relief on battery connections. A simple zip tie could prevent potential disconnections during crashes, which would enhance overall reliability. This minor tweak could save users from costly repairs down the line.

Customisation and Build Quality

Customisation options are plentiful with the Oasisfly25 O4. The design allows for various camera and video system setups, catering to different user preferences. Additionally, the quad features a sturdy frame with multiple mounting options, making it adaptable for various filming needs.

Camera Angle and Protection: What to Expect

Camera protection is another area where the Oasisfly25 O4 shows mixed results. While it offers some protection at specific angles, the overall design leaves the camera somewhat exposed. This could be a concern for pilots who often fly in challenging environments.

Final Thoughts: Is the Oasisfly25 O4 Right for You?

The Oasisfly25 O4 stands out as a capable quad for those seeking a smaller form factor without sacrificing performance. However, if extended flight times are your priority, the three-inch model may still be the better option. Ultimately, your choice should align with your flying style and intended use.

Takeaway Box

  • Oasisfly25 O4 offers robust performance in a compact design.
  • Wind resistance is commendable, making it suitable for less-than-ideal conditions.
  • Battery connection design could benefit from improved strain relief.
  • Camera protection is limited; consider this if flying in rugged environments.
  • Two-and-a-half-inch props provide agility; three-inch variants offer longer flight times.

This article was based from the video I Prefer the 2.5 // Same Same Just smaller // Sub250 Oasisfly25 O4