Petoi · Robot dog
Build-it kit Researched guide · not yet tested hands-on

Petoi Bittle X

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

$319–$469 In stock Hard body No app / Wi-Fi

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  • Open-source, offline voice control
  • One-year warranty, 30-day returns
  • ~1-hour battery

Petoi Bittle X (open-source robot dog). Price checked September 5, 2026. You buy from the retailer; some links pay us a commission.

Petoi Bittle X (open-source robot dog) — official product page
Image: Petoi · manufacturer image, not our photo

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.

Our take in full, what's good, what's not

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.

Good
  • Open-source, offline voice control
  • One-year warranty, 30-day returns
Not
  • ~1-hour battery
  • A coding kit, not a cuddly pet
  • Ages 10+

Who it's for

STEM-minded kids and adults.

Who it's not for

  • A coding kit, not a cuddly pet
  • Ages 10+

Specs

Price$319–$469
MovesWalks
App / Wi-FiNot needed
BatteryLi-ion pack
Weight~300 g class
SubscriptionNone
Warranty1 year
All specs, in full
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

Opens the retailer in a new tab. You buy from them; they handle delivery, returns and warranty. We may earn a commission — it never changes our pick.

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, and sources

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 — what that means. Price confidence: high.

Price note: petoi.com: Bittle X construction kits $319–$449, pre-assembled $339–$469 (lite vs alloy servos; optional gripper arm). Original Bittle $289 kit / $309 pre-assembled. Petoi frames it as a 'programmable robot pet'.

Image: Image: Petoi — source.

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