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Husqvarna Automower 420 iQ vs Husqvarna Automower 435X AWD

Two robot lawn mowers side by side. All figures are what the makers claim (as of 2026-10-07), not test results. Where a number decides it, the better one is marked.

Specifications compared

Husqvarna Automower 420 iQ compared with Husqvarna Automower 435X AWD
FigureHusqvarna Automower 420 iQHusqvarna Automower 435X AWD
Lawn size it can handle43,056 sq ft (4,000 m²)Ahead37,674 sq ft (3,500 m²)
SlopesUp to 45%Up to 70%Ahead
List price$3,300$3,000Ahead
List price per 100 m² of lawn$82Ahead$86
Noise62 dB60 dBAhead
GuidanceRTK-GNSSGPS+wire
Wire-freeYesNo
Needs a base station on the lawnNoNo
Cutting width24 cm22 cm
Drive2WDAWD
Battery5Ah Li-ion8Ah Li-ion
Water protectionIPX5IPX4
ConnectivityCellular, Wi-Fi, BluetoothBluetooth, Cellular

"Ahead" marks the better figure for lawn size, slope, price per lawn size, list price and noise. The list price is the maker's, not a store's.

Which one suits you

Choose the Husqvarna Automower 420 iQ if

  • You do not want to bury a boundary wire.

Choose the Husqvarna Automower 435X AWD if

  • Your yard has steeper slopes: 70% claimed against 45%.
  • Price matters most: the list price is $3,000 against $3,300.

More: all comparisons, best-for lists, report a wrong figure.