KingSmith WalkingPad X21 Review: Double-Fold Treadmill for Irish Homes
The KingSmith WalkingPad X21 is a running treadmill with a handrail that folds twice and stands upright for storage. This review explains what the X21 offers, what it costs from the official KingSmith EU store, what it means for Irish buyers and where it falls short.
Research-led review
WORTH CHECKING
Home Fitness Code Folding Treadmill Q8
A folding treadmill with a handrail console, 1 to 12 km/h, a 5% manual incline and a 150 kg listed user weight, sold on the Irish Home Fitness Code store.
From €219.99 €399.99
Available from Home Fitness Code Ireland · Price checked: 17 September 2026
Check price & availabilityKingSmith WalkingPad X21 at a glance
The KingSmith EU store lists the X21 at €899.00 and describes its main features. Detailed figures below come from a third-party EU retailer listing for the EU version, as noted. GymBunny has not measured any of these figures.
| Price | €899.00 (KingSmith EU store, checked 17 September 2026) |
|---|---|
| Speed | 0.5 to 12 km/h (EU retailer listing); 12 km/h (KingSmith EU store) |
| Motor | 1 HP brushless (EU retailer listing) |
| Max user weight | 110 kg (EU retailer listing) |
| Running area | 121 x 46 cm (EU retailer listing) |
| Machine weight | 43 kg (EU retailer listing) |
| Folding | Double fold (180° and 90°), stores upright; footprint under 0.16 m² (EU retailer listing) |
| Noise | 75 dB at full speed with no load (EU retailer listing) |
| Incline | None listed |
| Controls and display | Handrail control panel, hidden LED display (KingSmith EU store) |
| App | KS Fit app, with NFC pairing for Android (KingSmith EU store) |
| Other | Detachable phone holder (KingSmith EU store) |
| Warranty | Not confirmed for Irish buyers; check before ordering |
Who the X21 suits, and who should skip it
Good fit if you
- Want to jog or run at home, up to 12 km/h, with a handrail.
- Have very little floor space and can store a treadmill standing upright.
- Like a clean, minimal design with controls on the handrail.
- Want app tracking through KS Fit.
Look elsewhere if you
- Mainly want to walk at a desk: a flat walking pad costs much less.
- Weigh more than 110 kg, the listed user limit.
- Need to carry it upstairs often: the listed weight is 43 kg.
- Want incline, which is not listed for the X21.
- Need confirmed Irish delivery, warranty and returns before you buy.
Key features explained
Double-fold storage
The X21 folds in two stages and stands upright, which KingSmith says reduces the space it needs compared with a traditional treadmill. The listed footprint is under 0.16 m². Check your ceiling or cupboard height before relying on upright storage.
Running speeds with a handrail
A listed top speed of 12 km/h and a fixed handrail with a control panel make the X21 a running treadmill rather than an under-desk walking pad. The handrail also means it will not slide under a desk.
Hidden display and app
The LED display is built into the frame, and the KS Fit app shows time, speed, steps and calories. On Android phones, NFC pairing is listed. Calorie figures on any treadmill are estimates.
Noise and weight
The EU retailer listing gives 75 dB at full speed with no load. At 43 kg it is heavy, so moving it between rooms is harder than with a slim walking pad, even though it has a vertical storage position.
Strengths and limitations
Strengths
- Double-fold design with upright storage.
- Up to 12 km/h for jogging and running.
- Controls on the handrail and a detachable phone holder.
- Sold directly by the KingSmith EU store, priced in euro.
Limitations
- €899, several times the price of many walking pads with similar speeds.
- 110 kg listed user limit, lower than many cheaper machines.
- 43 kg listed weight.
- No incline listed.
- Irish delivery, returns and warranty terms not confirmed.
How we scored the X21
The overall rating is the average of four equally weighted scores, based on documented specifications and prices compared with other folding treadmills and walking pads available to Irish buyers. It is not a hands-on test result.
| Category | Score | Why |
|---|---|---|
| Performance | 4.0 | 12 km/h and a brushless motor suit jogging and running; no incline. |
| Build quality | 3.5 | Double-fold frame and handrail; 110 kg limit, 43 kg weight and a 75 dB listed noise figure. |
| Value | 3.0 | €899 is high next to folding treadmills such as the Home Fitness Code Q8 at €219.99. |
| Features | 4.0 | Upright storage, handrail controls, app with NFC and phone holder. |
KingSmith X21 vs Home Fitness Code Folding Treadmill Q8
Q8 figures are retailer specifications from the Irish Home Fitness Code store, checked 17 September 2026.
| Feature | KingSmith X21 | Home Fitness Code Q8 |
|---|---|---|
| Price | €899.00 | From €219.99 |
| Seller | KingSmith EU store | Home Fitness Code Ireland |
| Speed | 0.5 to 12 km/h | 1 to 12 km/h |
| Incline | None listed | 5% manual |
| Motor | 1 HP brushless | 3.0 HP |
| Max user weight | 110 kg | 150 kg |
| Machine weight | 43 kg | 26.3 kg |
| Running area | 121 x 46 cm | 97 x 40 cm |
| Noise (listed) | 75 dB at full speed, no load | Below 50 dB |
| Storage | Double fold, stands upright | Folding frame |
| App | KS Fit | None listed |
The X21 has a longer and wider running area and a more compact upright storage position. The Q8 costs much less and lists a higher user weight and a manual incline. If you want to compare the X21 with its sibling, read KingSmith X21 vs R2.
Buying the X21 in Ireland
- Where to buy: the KingSmith EU official store listed the X21 at €899.00 on 17 September 2026.
- Delivery: we could not confirm that the KingSmith EU store delivers to Ireland. Check at checkout before paying.
- Returns and warranty: not confirmed for Irish orders. Ask the seller before buying a 43 kg machine you may need to send back.
- Plug: check whether an EU plug is supplied; Irish sockets need a UK-style plug or a suitable adapter.
Running on a treadmill is more demanding than walking. If you have a health condition, an injury or balance concerns, check with your GP before starting.
KingSmith WalkingPad X21 FAQs
How much is the KingSmith X21 in Ireland?
The KingSmith EU official store listed the X21 at €899.00 on 17 September 2026. Prices change, so check the current price before buying.
Can you run on the KingSmith X21?
Yes. The X21 lists a top speed of 12 km/h and has a handrail, so it is designed for jogging and running as well as walking.
What is the weight limit of the X21?
An EU retailer listing gives a maximum user weight of 110 kg. Check the seller’s current listing before ordering.
Does the X21 fit under a desk?
Not easily. The fixed handrail makes it a standalone treadmill. It is designed to fold and stand upright for storage instead.
Does the X21 have incline?
No incline is listed for the X21. If you want incline on a folding treadmill, the Home Fitness Code Folding Treadmill Q8 lists a 5% manual incline.
Related KingSmith reviews
KingSmith X21 vs R2
How the X21 compares with KingSmith’s 2-in-1 walking and running pad.
WalkingPad R2 review
The foldable KingSmith model that works as a walking pad and a treadmill.
Is the X21 right for you?
If you want to run at home and have little floor space, the X21’s upright storage is its strongest point. If you mainly walk, need a higher weight limit or want confirmed Irish support, compare other models first.
