L40 Ultra AE vs T30C Gen 2: a camera or the lower price

Suction is close: 19,000 Pa in the L40 Ultra AE and 20,000 Pa in the T30C Gen 2. Both have brushes that limit hair wrap: the Dreame a rubber brush plus a TriCut brush, the ECOVACS a ZeroTangle 3.0 brush.

The difference lies in obstacle handling. The L40 navigates by laser (Pathfinder), recognises obstacles with a camera backed by 3D structured light and an LED, and detects carpet with an ultrasonic sensor. The T30C builds its map with TrueMapping 2.0, 96 m² in about 8 minutes according to ECOVACS, and avoids obstacles with TrueDetect structured light; the product page describes no camera.

The mops lift by 10.5 mm on carpets in the Dreame and by 9 mm in the ECOVACS. The Dreame also has MopExtend, which pushes the mop under furniture and into corners. The docks are similar: both wash at 75°C, dry the mops and dose fluid; ECOVACS states 45°C drying, Dreame a 3.2 l bag. The L40 is 9.7 cm tall and weighs 4 kg, while ECOVACS publishes neither height nor weight for the T30C.

We checked prices on 10 October 2026, and both models were on promotion. The ECOVACS DEEBOT T30C Gen 2 cost PLN 1,049 (≈ EUR 240) gross at ecovacspoland.pl instead of the regular PLN 2,149 (≈ EUR 490), with the promotion running until 31 October 2026. The Dreame L40 Ultra AE cost PLN 1,499 (≈ EUR 345) gross in Dreame's Polish shop, against a regular PLN 2,099 (≈ EUR 480). Both were in stock, each in its maker's own shop.

At regular prices the two are almost level, with the Dreame slightly cheaper. Right now the T30C is clearly the cheaper one, so if you choose the ECOVACS, do it before 31 October 2026. Add bags and detergent to the running costs. Dreame states a 3.2 l bag lasting about 100 days for the L40, while ECOVACS does not publish the bag capacity for the T30C.

Both robots suit a home or flat with a family and a pet, where the mops should be washed without daily rinsing by hand. Both climb thresholds of only up to 20 mm, so check high thresholds, for example at the balcony, before buying.

The L40 Ultra AE is the better fit where toys, cables or socks lie on the floor, because it recognises obstacles with a camera. Its published 9.7 cm height lets you check in advance whether it will fit under the sofa. Dreame quotes up to 168 m² per charge, and MopExtend reaches into corners.

The T30C Gen 2 is the choice for a multi-storey house, because it stores maps for up to three floors, and for buyers who want to pay as little as possible. You will have to check the robot's height yourself, as ECOVACS does not publish it on its Polish pages.