Comparison · Updated May 2026
Robot vs Cordless Lawn Mowers
One mows itself, the other you push. But which actually makes more sense for your garden, your budget and your weekends?
Side-by-side comparison
| Factor | Robot | Cordless |
|---|---|---|
| Your effort | Zero (set and forget) | 30-90 mins per week |
| Upfront cost | £500-£3,000 | £150-£700 |
| Running cost | ~£10/year electricity | ~£5/year electricity |
| Lawn quality | Excellent (daily micro-cut) | Good (weekly cut) |
| Stripes | No (random pattern) | Yes (with rear roller) |
| Noise | 55-65 dB | 78-84 dB |
| Handles obstacles | Varies by model | You steer around them |
| Edge cutting | Poor (needs strimmer) | Good |
| Long grass | Can't handle >8 cm | Handles up to 15 cm |
| Theft risk | Moderate (sits outdoors) | Low (stored in shed) |
When a robot mower makes sense
If you value your weekends more than £800-£1,500, a robot mower is transformative. You genuinely never mow again. The lawn looks better because daily cutting is healthier for the grass. And the noise is so low you can run it overnight without bothering anyone.
Best for: lawns 200-1,000 m², regular shapes, people who hate mowing. See our best robot mower guide.
When a cordless mower makes sense
If you actually enjoy mowing (plenty of people do), want stripes, have a tight budget, or need to handle long grass and rough patches that a robot can't cope with. Cordless mowers are also better for irregular gardens with lots of obstacles, narrow passages and raised beds.
Best for: any lawn size, stripe lovers, budget-conscious buyers. See our best cordless mower guide.
The verdict
If money's no object and you want your time back, buy a robot mower. If you want control, stripes and the best value, buy a cordless. If you can afford both, do what a surprising number of our readers do - run the robot during the week and use the cordless for a proper stripe session at the weekend.