STIHL iMOW 6 EVO vs Sunseeker X7 Plus

Quick take: The Sunseeker X7 Plus costs $101 less; the Sunseeker X7 Plus skips the boundary-wire install entirely while the STIHL iMOW 6 EVO needs a perimeter wire laid but doesn't care about tree cover or satellite signal; the Sunseeker X7 Plus is all-wheel drive, which is what keeps a mower climbing a wet slope; the Sunseeker X7 Plus is rated for a larger lawn (1.5 acres); the Sunseeker X7 Plus is rated for steeper ground (70%).

SpecSTIHL iMOW 6 EVOSunseeker X7 Plus
Price~$3,100~$2,999
Rating——
NavigationBoundary WireRTK + Vision
Max Lawn Size0.6 acres (26,136 sq ft)1.5 acres (65,340 sq ft)
Max Slope45% (24°)70% (35°)
Cutting Width11"14"
Cut Height2.4"–4"0.8"–4"
DriveRWDAWD
Runtime150 min120 min
Charge Time200 min90 min
Noise61 dB60 dB
Weight35.3 lb31 lb
Obstacle DetectionUltrasonic sensors slow it before contact with anything over about 4 inches tall, then a hood bumper; lift and tilt sensors; no cameras.Twin front cameras (3D binocular Vision AI) trained on 360-plus object types plus bumper, lift and tilt sensors; small low items like a ball can be run over.
Edge CuttingYesYes
Rain SensorYesYes
CellularYesYes
Anti-TheftPIN, alarm and GPS-based home-area lock via appGeofence lockout, PIN and 4G/GPS tracking
Warranty2-year limited (residential, via STIHL dealer; confirm at purchase)2-year

Pros & cons

STIHL iMOW 6 EVO

  • ✓More than double the 5 EVO's runtime, so a half-acre lawn finishes in fewer trips to the dock
  • ✓US high-cut deck goes to 4.0 inches, which most wire mowers cannot reach
  • ✓Ultrasonic sensors slow it before contact instead of relying only on the bumper
  • ✓Mobile network module included, so the app works without home Wi-Fi
  • ✓Quiet at 61 dB sound power with a floating three-blade disc and systematic lanes
  • ✗Boundary and guide wire must be installed, and dealer install is extra on top of $3,099.99
  • ✗US rating is only about 0.6 acre, not the 0.74 acre the international sheet promises
  • ✗Cannot cut below 2.4 inches, a problem for bermuda or zoysia kept short
  • ✗STIHL USA no longer publishes an iMOW product page, so specs live on dealer listings

Sunseeker X7 Plus

  • ✓AWD with a 70% slope rating at a price below the Luba 2 AWD 5000
  • ✓14 in dual floating discs cut wide and follow uneven ground
  • ✓Camera plus RTK keeps positioning under trees where GPS-only mowers wander
  • ✓100 zones, virtual walls and no-go areas cover complex properties
  • ✓Built-in 4G tracking and geofence lockout
  • ✗App is cluttered and mapping with the single joystick is slow
  • ✗Small low obstacles like balls can be run over
  • ✗Stock at Sunseeker is often sold out and Amazon has been unavailable
  • ✗Slower than some rivals: reviewers saw it take roughly twice as long per pass
  • ✗Low body limits it on the steepest banks despite the AWD rating