Quick Answer: The Hayward AquaVac 250Li (about $179-$249) and Dolphin Liberty 200 (about $899-$949) are both entry-tier cordless robotic pool cleaners, but they aren’t really competing for the same buyer. Per Maytronics’ own spec page, the Liberty 200 climbs walls on inground pools up to 33 feet; per Hayward’s own product page, the 250Li never claims wall coverage at all and is built for above-ground pools or shallow, flat-bottomed inground pools under 5 feet deep. The price gap — the 250Li costs roughly 75-80% less — tracks that coverage gap almost exactly, so picking between them comes down to one question: does your pool have walls that need scrubbing?

Both robots turn up in searches for “cheapest cordless pool cleaner,” which makes it tempting to treat this as a straightforward price comparison. It isn’t — Hayward’s first-ever cordless robot and Dolphin’s entry-tier Liberty occupy genuinely different coverage tiers, verified directly against each brand’s own spec pages.

Hayward AquaVac 250Li vs Dolphin Liberty 200 at a glance

Hayward AquaVac 250LiDolphin Liberty 200
Price~$179-$249~$899-$949
CleansFloor only (no wall/waterline claim)Floor and walls (no waterline)
Pool typeAbove-ground up to 30 ft diameter; shallow inground <5 ft deep, <15° slopeInground up to 33 ft, no depth restriction published
RuntimeUp to 120 minutes2.5 hours (default cycle)
ChargingStandard charging dockMagnetic-Connect inductive charging
App controlNoNo
Warranty3 yr (RCH200CU via dealer) — unconfirmed online SKU2 years
Weight15.4 lb~17.9-18 lb

By the numbers

Hayward AquaVac 250Li: the budget pick for simple pools

Hayward AquaVac 250Li

Hayward's first cordless robot · ~$179-$249
  • Floor-only cleaning for above-ground pools and shallow, flat-bottomed inground pools.
  • Up to 120 minutes of runtime per charge.
  • Large debris canister, floating retrieval string.
Check price on Amazon →

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Our full Hayward AquaVac 250Li review covers the RCH200CU vs. W3RCH200CU warranty naming trap in detail — worth reading before you buy, since the online-retail SKU’s warranty coverage isn’t confirmed to match the in-store version.

Dolphin Liberty 200: wall-climbing coverage for inground pools

Dolphin Liberty 200

Cordless entry tier with wall climbing · $899-$949
  • Scrubs floor and walls (no waterline) on a 2.5-hour cycle.
  • Rated for inground pools up to 33 feet.
  • Magnetic-Connect inductive charging, top-load filter access.
Check price on Amazon →

Our full Dolphin Liberty 200 review covers the waterline coverage gap versus the step-up Liberty 300, if wall climbing alone isn’t enough for your pool.

Which should you buy?

If neither fits, our best cordless robotic pool cleaner guide ranks the full field, including wall-and-waterline models like the Dolphin Liberty 300 and Aiper’s Scuba line.

The bottom line

The Hayward AquaVac 250Li and Dolphin Liberty 200 both advertise “cordless” and both target budget-conscious buyers, but they aren’t substitutes for each other. The 250Li is the cheaper, more coverage-restricted option built for above-ground and shallow inground pools; the Liberty 200 costs several times more but climbs walls on a standard 33-ft inground pool. Match the robot to your pool’s shape, not the price tag — a flat-bottom above-ground pool doesn’t need the Liberty 200’s extra capability, and a deep-end inground pool is outside the 250Li’s stated range entirely.