Petoi Bittle X Robot Dog (Pre-Assembled) vs Petoi Bittle Open Source Robot Dog Kit

Specifications

Spec Petoi Bittle X Robot Dog (Pre… Petoi Bittle Open Source Robo…
Length 20 cm 20 cm
Weight 250 g ~250g
Controller BiBoard (ESP32) NyBoard (Arduino-compatible)
Servos 9× digital servos 9× digital servos
Battery 7.4V 1000mAh Li-ion 7.4V 1000mAh Li-ion
Connectivity Bluetooth, Wi-Fi Bluetooth (WiFi via add-on module)
Programming Python, Arduino, Scratch Arduino C, Python, Scratch
Built-in Actions 35+
Price $299 $249
Rating ⭐ 4.6 ⭐ 4.5
Reviews 760 890

Petoi Bittle X Robot Dog (Pre-Assembled)

Pros

  • Pre-assembled — coding in 10 minutes, not 3 hours
  • Voice command support via the BiBoard controller
  • 35+ built-in actions accessible via app or Python
  • Open-source firmware on GitHub — fully hackable

Cons

  • Small size (20cm) limits payload and outdoor use
  • Battery life is ~1 hour under active use
  • Voice recognition requires quiet environment to work reliably

Petoi Bittle Open Source Robot Dog Kit

Pros

  • Building it yourself teaches servo mechanics and quadruped kinematics you can't learn from a pre-assembled kit
  • Fully open-source firmware on GitHub — every line of code is readable and modifiable
  • App + Python + Arduino control options cover all skill levels
  • Active community with regular firmware updates and new skill packs

Cons

  • Assembly takes 3–5 hours — not suitable for young children without adult help
  • Older NyBoard controller has less WiFi capability than the newer BiBoard (Bittle X)
  • Battery life ~1 hour under active use

Verdict

  • $ Petoi Bittle Open Source Robot Dog Kit saves $50 — better for budget-conscious buyers.
  • Petoi Bittle X Robot Dog (Pre-Assembled) is rated higher (0.1 stars difference).
  • Petoi Bittle Open Source Robot Dog Kit delivers the best rating-per-dollar.