All Reviews: Electric Lawn Equipment & Outdoor Automation

Corded or cordless? Compare the three cleaners

This is a research-based summary, checked October 10, 2026—not a cleaning-speed ranking. Start with the surfaces you need cleaned, then check your pool’s dimensions, finish, steps and minimum depth against the exact model’s documentation.

Cleaning coverage and ownership are different from navigation performance in your particular pool.

Buying factor	Dolphin Nautilus CC Plus Wi-Fi	Aiper Scuba S1 2026 Upgrade	Beatbot AquaSense 2
Power	Corded cleaner with an external power supply. Wi-Fi is control connectivity, not battery power.	Cordless, rechargeable battery; remove for charging.	Cordless, rechargeable battery with a charging dock.
Cleaning coverage	Pool floor and walls. No dedicated waterline scrubbing listed.	The named 2026 Upgrade product page advertises floor, walls and waterline. Do not apply this to every older Scuba S1 version.	Floor, walls and waterline, including a manufacturer-described double-pass waterline routine. The base AquaSense 2 is not the Pro/Ultra.
Pool compatibility	In-ground pools. Confirm the exact SKU’s maximum length: current official pages disagree between 40 and 50 ft.	Maker lists in-ground and above-ground use, up to 1,600 sq ft. Confirm the surface and ledge depth for the actual generation.	Maker lists in-ground and above-ground pools and up to 3,230 sq ft of pool-bottom area. Steps and shallow areas still need a model-specific check.
Between sessions	Manage the cable and keep the power supply positioned as instructed; no battery recharge break. Retrieve and rinse the filter after use.	Retrieve, drain, rinse filters and charge in the approved dry setup. Longest Eco-runtime claims are not all-mode guarantees.	Surface parking / draining assist retrieval, but you still empty the filter and recharge. Maker’s up-to-four-hour figure is for floor cleaning.
Main ownership tradeoff	Choose around cable access and floor/wall work; do not buy Wi-Fi expecting cordless operation or dedicated waterline scrubbing.	No trailing power cable, but charging, generation identification and replaceable filters enter the routine.	No trailing cable and retrieval features; allow room for the dock, battery charging and carrying the drained machine.
Verify with the maker	Exact model specifications ↗ Model user manual ↗	2026 Upgrade specifications ↗ Coverage and pool-fit reference ↗	AquaSense 2 specifications and compatibility ↗

Verification notes: Maytronics’ model page currently says 40 ft while its official caddy-bundle page says 50 ft; resolve the exact cleaner SKU before buying. Accessories in that bundle are not assumed included in the reviewed offer. The Amazon page linked by our Aiper review did not resolve at this check, so use the verified manufacturer link above to confirm the exact generation and availability.

Images: the existing matched Dolphin and Beatbot listing photos, and the Aiper manufacturer’s 2026 Upgrade gallery photo. Published coverage figures are conditional manufacturer estimates. We have not tested navigation, cleaning completeness, ease of retrieval or durability in a pool.