Petoi Bittle X (open-source robot dog)

A palm-sized walking robot dog you build and program.

Our take

Bittle X is a STEM kit disguised as a pet: a nine-servo quadruped you assemble in about an hour and program in Scratch, Python, or C++, with 35 offline voice commands. It is a great gift for a curious ten-year-old and a bad gift for anyone who wants a companion.

Specs

Battery

Li-ion pack; ~1 h continuous walking; charges via USB

Weight

~300 g class (not published on page); carries ~1 lb payload

Size

Palm-sized (about 20 cm long; not verified)

Materials / fur

Plastic/nylon frame; no fur

Sensors

Optional camera and IoT sensor modules; onboard voice module (35+ commands, offline)

Sounds

Buzzer/voice responses

Movement

Walks on 4 legs, 9 DOF; ~2 body lengths/sec

Warranty

1 year; 30-day returns

Subscription

None

Notable features

• Open-source, programmable in Scratch/Python/C++; STEM focus
• Offline voice control (35+ commands, 10 custom)
• Build-it-yourself kit (40–90 min) or pre-assembled

Limitations reported by owners and reviewers

• Ages 10+; a coding kit rather than a cuddly companion
• ~1 h battery; no cloud AI personality
• Not waterproof

Evidence and real-world use

We found no peer-reviewed studies or documented care-program deployments for this product as of September 5, 2026. That is normal for consumer robots; it just means claims about wellbeing benefits are the manufacturer's, not independent.

How we know this

Specs and prices come from the manufacturer's own pages and press releases, checked on September 5, 2026; owner-reported limitations come from published reviews and caregiver forums. We have not yet tested this unit hands-on — here is what that means and when it changes. Sources:

• www.petoi.com/products/petoi-robot-dog-bittle-x-voice-controlled
• www.petoi.com/products/petoi-bittle-robot-dog

Price confidence: high.

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