Husqvarna Automower 420 iQ vs Husqvarna Automower 435X AWD
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Quick take: The Husqvarna Automower 435X AWD costs $300 less; the Husqvarna Automower 420 iQ skips the boundary-wire install entirely while the Husqvarna Automower 435X AWD needs a perimeter wire laid but doesn't care about tree cover or satellite signal; the Husqvarna Automower 435X AWD is all-wheel drive, which is what keeps a mower climbing a wet slope; the Husqvarna Automower 420 iQ is rated for a larger lawn (1 acre); the Husqvarna Automower 435X AWD is rated for steeper ground (70%); the Husqvarna Automower 420 iQ cuts taller (up to 4"), which matters for fescue and warm-season grasses.
| Spec | Husqvarna Automower 420 iQ | Husqvarna Automower 435X AWD |
|---|---|---|
| Price | ~$3,299 | ~$2,999 |
| Rating | 3.9★ (247) | 3.6★ (61) |
| Navigation | RTK GPS | Boundary Wire |
| Max Lawn Size | 1 acre (43,560 sq ft) | 0.9 acres (39,204 sq ft) |
| Max Slope | 45% (24°) | 70% (35°) |
| Cutting Width | 9.4" | 8.7" |
| Cut Height | 1"–4" | 1.2"–2.8" |
| Drive | RWD | AWD |
| Runtime | 84 min | 145 min |
| Charge Time | 54 min | 45 min |
| Noise | 62 dB | 60 dB |
| Weight | 38 lb | 39 lb |
| Obstacle Detection | Radar object detection plus bumper collision, lift and tilt sensors; slows for large objects but still bumps small ones and cannot see sticks or toys | Ultrasonic remote object detection plus bumper collision, lift and tilt sensors; slows before contact but cannot see wire cuts or low objects |
| Edge Cutting | No | No |
| Rain Sensor | No | No |
| Cellular | Yes | Yes |
| Anti-Theft | PIN code, lift alarm, GPS tracking and geofence alerts | PIN code, lift alarm, GPS tracking and geofence alerts |
| Warranty | 4-year limited (3-year battery) | 2-year limited |
Pros & cons
Husqvarna Automower 420 iQ
- ✓Best value in the iQ range: double the rated area of the 410 iQ for a few hundred dollars more, and often discounted
- ✓Faster 54-minute charge than the 410 iQ keeps it mowing through the day
- ✓Owners who upgraded from wired X-line mowers report faster, more systematic coverage and easier install
- ✓Optional physical wire for shaded trouble spots, unlike camera-only competitors
- ✓Quiet 62 dB operation and a fine mulching cut suited to early-morning schedules
- ✓4-year warranty plus cellular theft tracking with no subscription
- ✗EPOS can lose fix in narrow side yards or under heavy tree cover and simply stops until you intervene
- ✗Radar does not avoid sticks, toys or low edging; owners with old trees say they walk the yard before every mow
- ✗Rear-wheel drive and a 45 percent slope limit trail AWD rivals at this price
- ✗Brand-site reviews include units that failed within weeks and long dealer repair queues
Husqvarna Automower 435X AWD
- ✓Same 70 percent slope capability as the $5,000 iQ version for $2,000 less
- ✓Boundary wire works under dense trees and between buildings where EPOS mowers lose signal
- ✓Long-term owners on Husqvarna's site report four to five seasons of reliable service
- ✓Ultrasonic sensors, LED headlights, GPS theft tracking and cellular app control included
- ✓Quiet 60 dB operation and a 145-minute runtime
- ✗Wire and guide-wire install is a multi-day DIY project or a paid dealer job
- ✗At 39 pounds it leaves tracks on soft ground and is awkward to carry when it gets stuck
- ✗Only a 2-year warranty versus 4 years on the iQ series
- ✗Some owners report weak lift alarms and thin dealer service in parts of the country
- ✗Wire-free Mammotion Luba 2 AWD models cost less and climb comparably