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Bench Test · 10 min read
Two seasons, 611 cutting sessions, and one battery deep-dive. The 315X scores 8.4/10 — and at £700–£950 used, it's one of the best-value robots on this site. Here's what separates it from the 315, and what to check before buying used.
By Robot AutoTrader Bench Team · 8 May 2026 · Unit bought at retail
Superb on lawns up to 1,500 m² with proper wire installation. Used buyers: insist on the dealer service history and check blade-disc bearing play.

The 315X is the GPS-equipped successor to the 315. The underlying mowing hardware — the same brushless blade motor, the same boundary-wire perimeter system, the same 23 cm cutting width — is identical. What the X adds is Automower Connect (app control and remote monitoring over cellular), GPS-assisted navigation that records the lawn map and optimises route coverage over time, and Automower Connect anti-theft tracking. The GPS also enables the Husqvarna Automower app's fleet monitoring for dealers, which is why stamped dealer service history is easier to obtain on X models than on the base 315.
In used-market terms the 315X commands a £100–£200 premium over a comparable-condition 315, which is approximately what the Connect subscription and GPS module add in utility. If you do not care about app control or theft protection, a clean 315 with dealer history at £550–£700 is the more efficient buy. If remote scheduling, alerts, and theft deterrence matter to you — and they reasonably might for a £900 robot left outdoors all summer — the 315X is worth the gap.
| Feature | Automower 315 | Automower 315X |
|---|---|---|
| Lawn area (max) | 1,500 m² | 1,600 m² |
| Cutting width | 23 cm | 23 cm |
| GPS navigation | No | Yes — improves coverage over time |
| Automower Connect app | No | Yes — remote scheduling, alerts, status |
| Anti-theft GPS tracking | No | Yes — traceable if stolen |
| Cellular module | No | Yes — included |
| New price (2026) | ~£1,599 | ~£1,899 |
| Used price (2026) | £550–£700 | £700–£950 |
Two full mowing seasons, two winters, 611 logged cutting sessions and one apologetic note to a hedgehog charity later, the 315X has earned its reputation the boring way: by turning up. On our 1,150 m² test lawn it held GPS-logged coverage above 97% in both seasons, and the cut — a few millimetres taken daily rather than a weekly scalping — produced the densest sward this lawn has had in a decade. At £1,899 new that was a hard sell against a teenager with a Honda. At £700–£950 used, with dealer history, it is one of the best-value robots on this site.
The caveats are real, and they are all about installation and history rather than the robot. The 315X is only as good as the boundary wire buried around your lawn, and a used one is only as good as the dealer servicing it did or didn't get. Buy one that has both — proper wire installation on a lawn under 1,500 m², stamped dealer service history — and it is superb. Buy one without, and you have purchased a £900 argument with a spool of wire.
Our long-term mower protocol: a 1,150 m² single-zone British lawn (clay soil, two apple trees, a 12° slope at the rear), daily 4-hour cutting windows from March to October across two seasons, with the mower stored per Husqvarna's manual over both winters. Coverage comes from the 315X's own GPS logs cross-checked with dye-plate sampling; cut quality is our usual 10-point panel score; edge gap is a tape measure and patience.
| Coverage (GPS-logged, 1,150 m²) | 97.4% season 1 | 98.1% season 3 |
|---|---|---|
| Cut quality (panel score /10) | 8.9 season 1 | 8.7 season 3 |
| Edge gap at boundary (average) | 7 cm season 1 | 7 cm season 3 — keep the strimmer |
| Battery runtime (measured) | 68 min season 1 | 61 min season 3 |
| Blade life (pivoting razor set) | 6.5 weeks per set | £14 per 9-pack; ~£42/season |
| Wet-grass performance | Mows through steady rain | Panel score drops ~1 point in a downpour |
| Failed / stranded sessions | 5 of 314 | 3 of 297 (99% completion overall) |
Everything good and bad about a 315X traces back to a wire you will never see again. Ours was dealer-installed — pegged at the correct 30–35 cm offsets, corners swept rather than squared, a guide wire run up the middle of the slope — and the robot behaved like a machine that cost £1,899. For science, we then re-laid a 40-metre section ourselves, freehand, the way an optimistic Saturday installer would. Coverage in that zone fell to 91%, the mower began bump-turning off the fence, and the edge gap opened to 12 cm. Same robot, worse lawn.
This is why we bang on about installation in every used listing. A used 315X sold with the wire still in the seller's lawn is half a product: budget £150–£250 for a fresh dealer installation, or a full weekend and 300 m of wire if you do it yourself. And the 7 cm edge gap in our table is the good result — physics puts the blade disc inboard of the chassis, so no Automower cuts to the fence. You will still own a strimmer. Anyone who tells you otherwise is selling something, possibly this mower.
The 315X spends November to February in a shed, and how it spends those months is the biggest variable in used-market battery health. Ours was stored the way the manual demands — charged to full, powered off, kept indoors above 5°C — and after two winters the pack measures 89% of original capacity: runtime down from 68 to 61 minutes, which the mower silently absorbs by charging a little more often. Nobody watching the lawn would notice.
The counterexample matters more. We bench-tested a privately traded 315X of the same age that had wintered in an unheated garage on its charging station, trickling all winter at 2°C. Its pack held 71%, and its owner had no idea — the mower still mowed, it just spent 40% of its life docked. Replacement packs run £90–£130 plus fitting. On a used purchase, ask where the mower spent its winters before you ask anything else, and treat 'it lived outside' as a £120 discount, minimum.
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