Yard Force Revola X4E vs Gardena SILENO life
Quick take: The Gardena SILENO life costs $84 less; the Yard Force Revola X4E is rated for a larger lawn (0.5 acres); the Yard Force Revola X4E is rated for steeper ground (40%); the Yard Force Revola X4E cuts taller (up to 3"), which matters for fescue and warm-season grasses.
| Spec | Yard Force Revola X4E | Gardena SILENO life |
|---|---|---|
| Price | ~$799 | ~$715 |
| Rating | — | — |
| Navigation | Boundary Wire | Boundary Wire |
| Max Lawn Size | 0.5 acres (21,780 sq ft) | 8,100 sq ft (8,100 sq ft) |
| Max Slope | 40% (22°) | 35% (19°) |
| Cutting Width | 8.7" | 8.7" |
| Cut Height | 1.3"–3" | 0.8"–2" |
| Drive | RWD | RWD |
| Runtime | 100 min | 65 min |
| Charge Time | 80 min | 60 min |
| Noise | — | 58 dB |
| Weight | 18.5 lb | 18.3 lb |
| Obstacle Detection | 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. | Bumper collision sensors plus lift and tilt stops; no camera, radar or ultrasonic on the base unit (Gardena sells an add-on anti-collision radar separately). |
| Edge Cutting | No | No |
| Rain Sensor | Yes | No |
| Cellular | No | No |
| Anti-Theft | PIN code lock and high-decibel alarm; no GPS tracking | PIN code and alarm |
| Warranty | 2-year limited | 2-year limited |
Pros & cons
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
Gardena SILENO life
- ✓8.7 in deck cuts wider than the 6.3 in city and minimo and clears 8,100 sq ft on a 65-minute cycle
- ✓58 dB and mows in rain, so it can run on any schedule without bothering neighbors
- ✓Guide wire with CorridorCut makes narrow passages and outlying areas reliable
- ✓PIN plus alarm is a step up from the city and minimo
- ✓About $715 undercuts most wired mowers with this coverage
- ✗2.0 in maximum cut height is too short for cool-season grass
- ✗Bluetooth-only app: no remote start, stuck alerts or GPS tracking
- ✗Bumper-only obstacle handling unless you buy the add-on radar
- ✗Legacy model on Gardena's site; the 1000 size is no longer priced in the US
- ✗No edge-cutting mode, so trimming along walls is still on you