Yard Force NX100i vs Yard Force Revola X4E
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Quick take: The Yard Force Revola X4E is rated for a larger lawn (0.5 acres); the Yard Force Revola X4E cuts taller (up to 3"), which matters for fescue and warm-season grasses.
| Spec | Yard Force NX100i | Yard Force Revola X4E |
|---|---|---|
| Price | ~$799 | ~$799 |
| Rating | — | — |
| Navigation | Boundary Wire | Boundary Wire |
| Max Lawn Size | 14,520 sq ft (14,520 sq ft) | 0.5 acres (21,780 sq ft) |
| Max Slope | 40% (22°) | 40% (22°) |
| Cutting Width | 7" | 8.7" |
| Cut Height | 1.3"–2.9" | 1.3"–3" |
| Drive | RWD | RWD |
| Runtime | 90 min | 100 min |
| Charge Time | — | 80 min |
| Noise | — | — |
| Weight | — | 18.5 lb |
| Obstacle Detection | iRadar active ultrasonic sensors on the nose detect furniture, pets and toys ahead and steer around them; bumper, lift and tilt sensors back them up and a rain sensor sends it to dock. | Three active ultrasonic sensors detect obstacles ahead and turn the mower before contact; bumper, lift and tilt sensors back them up, and a rain sensor returns it to the dock. |
| Edge Cutting | No | No |
| Rain Sensor | Yes | Yes |
| Cellular | No | No |
| Anti-Theft | PIN code lock with lift and tilt alarm; no GPS tracking | PIN code lock and high-decibel alarm; no GPS tracking |
| Warranty | 2-year limited | 2-year limited |
Pros & cons
Yard Force NX100i
- ✓Ultrasonic sensors avoid pets and patio furniture before contact, rare under $1,000
- ✓$799 with Home Depot and Lowe's availability, so returns and parts are local
- ✓Rain sensor, lift and tilt cutouts and PIN lock all included
- ✓CloudHawk app handles scheduling and cut height without touching the mower
- ✗7 in deck and random pattern mean a full 1/3 acre can take two days to finish
- ✗2.9 in maximum height is too low for lawns kept at 3 in or more
- ✗No GPS, mapping or cellular, so theft recovery is a PIN and an alarm
Yard Force Revola X4E
- ✓Cheapest half-acre robot at the big-box stores, with the full wire kit in the box
- ✓Ultrasonic sensors turn it before it bumps furniture, pets or toys
- ✓Front and back yard can be scheduled as separate zones
- ✓18.5 lb body is easy to carry between zones or lift for blade changes
- ✓Rain sensor plus lift, tilt and PIN protection are standard
- ✗Random-pattern mowing, so a full half acre needs long daily windows
- ✗Yard Force's own pages disagree on cut height range (2.4 in vs 3 in maximum)
- ✗No GPS or cellular, so theft protection is only a PIN and an alarm
- ✗Reviewers flag slow replacement-part support from Yard Force