Robot vacuums

DEEBOT T80 or T90 series: which models are worth the step up?

Published · By the BotLineup editors · Prices and specs as of that date, from the pages under Sources

Summary

By ECOVACS's own figures, the T90 Omni, T90 Max Plus Omni and T90 Pro Omni list more suction and a higher mop lift than the T80 Omni, and each lists the newer ZeroTangle 4.0 brush. The Max Plus, Pro and S Pro versions each add something different on top of that. What a step up cost varied by store. Prices overlapped: on 2026-10-13, Amazon listed the T90 Omni, T90 Max and T90 Max Plus Omni below the T80S Omni's $710.

How the T80 and T90 lines differ

Both lines use roller mops. ECOVACS rates the self-washing T80 Omni at 18,000 Pa, with 10 mm mop lift and 20 mm threshold climbing. Its dock empties into a 3 L bag, washes at 40 to 75°C and dries at 45°C. The page lists "no auto detergent dispenser."

The T90 Omni is rated at 30,000 Pa, with 15 mm mop lift for rug crossings and 0.94 in threshold climbing. It uses OZMO ROLLER 3.0 and a "ZeroTangle 4.0 Airflow-Directed Anti-Tangle Main Brush." The dock adds dirty water box auto-cleaning and emptying for "up to 90 days", but its 2.5 L bag is smaller than the T80 Omni's 3 L.

The T80S Omni falls between the two lines. ECOVACS lists it at 24,800 Pa with an OZMO ROLLER 2.0 spinning at 220 rpm, a 0.8 in threshold climb and a dock that handles "auto refill and drain." Its US store page showed $649.99 and "Sold out" when checked on 2026-10-23.

T80 and T90 models, with store prices

The model names do not put these functions in a simple order. Compare the exact versions and their dated prices:

Where store prices overlap

The model order and the price order don't match. At Amazon on 2026-10-13, the T80S Omni cost more than three T90 versions: $710 − $699.99 = $10.01 over the T90 Omni, $710 − $649.99 = $60.01 over the T90 Max, and $710 − $549.99 = $160.01 over the T90 Max Plus Omni. At the same store, the T90 Max Plus Omni matched the T80 Omni at $549.99.

Store and color moved prices as much as the model did. The T90 Pro Omni was $799.99 at Amazon (checked 2026-10-13) and $499 at Walmart (checked 2026-10-07): $799.99 − $499 = $300.99. Walmart's T80 Omni price on 2026-10-07 was $399, so the T90 Pro Omni cost $499 − $399 = $100 more at that store. At Best Buy, the T90S Pro Omni in White cost $899.99 − $699.99 = $200 more than in Black. These were prices on the dates shown, read on different days at different stores, so compare them again before you buy.

Which step is worth paying for

If your home is mostly hard floor with few rugs and low thresholds, the T80 Omni covers vacuuming, roller mopping and hot-water mop care. On the dates checked, it was also the lowest-priced model here at Walmart.

For rugs between hard-floor areas, compare the T90 Omni, T90 Max Plus Omni, T90 Pro Omni and T90S Pro Omni: each has a listed 15 mm lift against the T80 Omni's 10 mm. For automatic solution dispensing, ECOVACS lists the T90 Pro Omni and T90S Pro Omni. At taller door saddles, compare the T90S Pro Omni's 2.5 cm and T90 Pro Omni's 2.4 cm ratings with the T80 Omni and T90 Max Plus Omni at 20 mm.

Among the models with ECOVACS specs listed here, the T90 Max Plus Omni has the highest suction rating and the hottest mop wash, with the T90S Pro Omni matching its 40,000 Pa. At $549.99 at Amazon and Best Buy on the dates checked, it cost the same as the T80 Omni at those stores. That makes it hard to justify the T80 Omni at those two stores unless you specifically want its larger 3 L dust bag.

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Sources

  1. ecovacs.com/us/shop/deebot-robotic-vacuum-cleaner/deebot-t80-omni
  2. amazon.com/dp/B0HF44PG3Q
  3. bestbuy.com/site/10315559.p
  4. walmart.com/ip/17394017252
  5. ecovacs.com/us/shop/deebot-robotic-vacuum-cleaner/deebot-t80s-omni
  6. amazon.com/dp/B0GHY7VT3Y
  7. ecovacs.com/us/shop/deebot-robotic-vacuum-cleaner/deebot-t90-omni
  8. amazon.com/dp/B0GRG6B2P9
  9. amazon.com/dp/B0HCYY677D
  10. ecovacs.com/us/shop/deebot-robotic-vacuum-cleaner/deebot-t90-max-plus-omni
  11. amazon.com/dp/B0HCVF3P83
  12. bestbuy.com/site/13095627.p
  13. ecovacs.com/us/shop/deebot-robotic-vacuum-cleaner/deebot-t90-pro-omni
  14. amazon.com/dp/B0GJ5S4V78
  15. walmart.com/ip/18860852003
  16. ecovacs.com/us/shop/deebot-robotic-vacuum-cleaner/deebot-t90s-pro-omni-black
  17. bestbuy.com/site/13066536.p
  18. bestbuy.com/site/13077888.p

We have not tested these products. Specs, prices, stock and terms are as published on these pages on the date above and can change; check the manufacturer or retailer before you buy.

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