What’s your robot worth?
A used robot is worth a share of its verified new price, and how big that share is comes down to three things: how fast its class depreciates, how old it is, and what condition it is in. As of August 2026, Valumech can estimate a used value for 21 of the 104 robots it tracks — from about $45 for the Petoi Bittle X to about $39,300 for the EngineAI T800. The other 83 have no published new price or have never been delivered, so they get no estimate at all rather than a guess.
Pick your model below and you’ll land on its estimate — used-value range, condition and age multipliers, and the depreciation curve. For what robots cost brand new, see the robot price guide.
21 robots ready to value — pick yours:
83 more robotscan’t be valued honestly yet — most have no public price (quote-only, pre-release, or not sold to the public); a few are so far past their debut that a modeled number would be a guess. Tap one for its specs and status:
Frequently asked
What is a robot worth?
A robot is worth what its verified new price has depreciated down to, adjusted for age and condition. Across the 21 robots Valumech can currently estimate, modeled used values run from about $45 to about $39,300, as of August 2026. Every estimate starts from the maker's own price — never from a figure we invented.
How much value does a robot lose each year?
Valumech depreciates by tier unless a model has its own tracked rate: hobbyist robots lose about 48% of their value a year, consumer 40%, research 36%, and enterprise 30%. A two-year-old consumer robot therefore retains roughly 36% of what it cost new.
How much would a used robot dog be worth?
Valumech estimates used values for 5 robot dogs, running from about $45 for the Petoi Bittle X to about $5,380 for the AgiBot D1 Ultra, as of August 2026. Industrial inspection dogs are usually sold by private quote, so many carry no public price and get no estimate.
What is a used Tesla Optimus worth?
Valumech publishes no used value for Tesla Optimus. There is no list price for it and it is not orderable, so there is no verified figure to depreciate and no secondary market to observe. The $20k–30k figure often quoted is a long-term high-volume target, not a price anyone can pay today.
Does condition change what a robot is worth?
Yes, and it is the largest single adjustment after age. Valumech multiplies the age-adjusted value by 1.12× for mint condition (as-new, boxed) down to 0.7× for heavy use (high hours, cosmetic damage) — a spread of roughly 60% between the same robot in the best and worst shape.
Estimates are currently modeled from category depreciation rates and clearly labeled as placeholders — they become confidence-rated numbers as the tracker logs real market prices. How the numbers are built →