Greenworks AiMowbot C30Z vs Greenworks Optimow 33H

Quick take: The Greenworks Optimow 33H costs $500 less; the Greenworks AiMowbot C30Z skips the boundary-wire install entirely while the Greenworks Optimow 33H needs a perimeter wire laid but doesn't care about tree cover or satellite signal; the Greenworks AiMowbot C30Z is rated for a larger lawn (0.75 acres); the Greenworks AiMowbot C30Z is rated for steeper ground (45%); the Greenworks Optimow 33H cuts taller (up to 4"), which matters for fescue and warm-season grasses.

SpecGreenworks AiMowbot C30ZGreenworks Optimow 33H
Price~$1,599~$1,099
Rating——
NavigationRTK + VisionBoundary Wire
Max Lawn Size0.75 acres (32,670 sq ft)14,520 sq ft (14,520 sq ft)
Max Slope45% (24°)34% (19°)
Cutting Width8"8.7"
Cut Height0.75"–3.5"2.4"–4"
DriveFWDRWD
Runtime——
Charge Time50 min130 min
Noise54 dB—
Weight—26.4 lb
Obstacle DetectionSmart cameras plus night-vision sensors that Greenworks says recognize 200-plus obstacle types, with a bumper and LED headlights for night mowing.Bumper collision sensors and lift/tilt stops only; no camera or ultrasonic, so it bumps and turns.
Edge CuttingNoNo
Rain SensorNoYes
CellularYesYes
Anti-TheftAlarm plus GPS tracking when the 4G plan is activePIN code, lift alarm and 4G GPS tracking
Warranty3-year limited4-year limited (confirm with dealer)

Pros & cons

Greenworks AiMowbot C30Z

  • ✓RTK accuracy with camera backup means no wire and real row mowing
  • ✓45% slope rating beats most 2WD RTK rivals
  • ✓Very quiet at 54 dB and hose-washable (IPX6)
  • ✓Electric cut-height adjustment from the app
  • ✓3-year warranty from a brand with US big-box distribution
  • ✗4G and anti-theft features require a subscription with no published price
  • ✗Edge cutting stops about 4 in short of borders
  • ✗Front-wheel-drive three-wheel layout, not AWD, despite the slope rating
  • ✗Brand new in 2026 with no long-term reliability data
  • ✗No rain sensor listed on the spec sheet

Greenworks Optimow 33H

  • ✓High-cut 2.4-4.0 in range is right for fescue and bluegrass
  • ✓4G plus GPS built in, so the app works away from home Wi-Fi
  • ✓Proven wire-and-guide-wire platform with a wide dealer network
  • ✓Long consumer warranty on the Optimow line
  • ✗Dealer-only and sold out online; pricing and stock vary by dealer
  • ✗GreenGuide app draws consistent complaints from Optimow owners
  • ✗Cellular plan renews for a fee after the prepaid period
  • ✗No edge mode and no camera obstacle avoidance
  • ✗Random pattern and 130-minute charges make it slow on a full third acre