Short answer: pick LifeSpan if you want a heavier, more robust machine built to sit under a desk all day, with the option to step up to faster running models. Pick King Smith if you want a slim, foldable walking pad that tucks away in a small home and costs less. Both are good brands. The right one depends on your space, your budget, and whether you only ever want to walk or would like the option to run.
Below is an honest look at how the two compare so you can decide without the marketing noise. You can see our full range on the LifeSpan collection and the King Smith collection, and browse everything together on the walking pads collection.
Who makes each one
LifeSpan is a long-established fitness brand that built its name on treadmill desks and under-desk treadmills for offices and home workspaces. The focus has always been on machines that hold up to daily use, with sturdy frames, higher weight capacities on many models, and warranties to match.
King Smith is the company behind the WalkingPad name. It made compact, foldable walking pads popular by stripping the treadmill back to something slim enough to slide under a sofa or bed. The designs lean towards minimal looks, light weight, and app or remote control.
Build and durability
This is where the two brands feel most different. LifeSpan machines tend to be heavier and more solid underfoot, which many people prefer for long working days. That weight is a trade off, since they are harder to lift and move around. King Smith pads are lighter and often fold in half, so they are easier to store and shift between rooms, but they can feel less planted at higher speeds.
If your walking pad will live under one desk and rarely move, the sturdier LifeSpan approach suits you. If you need to pack it away between sessions or carry it about, King Smith has the edge.
Walking only, or running too
Most compact walking pads from both brands are built for walking rather than running. King Smith does offer models with a fold up handrail that allow faster paces, and LifeSpan offers larger treadmills alongside its under-desk range if running matters to you. Check the top speed and the running surface on the specific model, because this varies a lot across each range. If you only ever plan to walk at your desk, either brand covers you.
Features and controls
King Smith leans into app connectivity and remote control, with slim consoles or no console at all to keep the profile low. LifeSpan tends to offer clear built in displays and, on desk focused models, step and distance tracking aimed at the working day. Neither approach is better on its own. Think about whether you want to glance at a screen while you work or would rather run everything from your phone.
Price
As a rule, King Smith sits at the more affordable end and LifeSpan asks more for its heavier build and longer warranty cover. That gap reflects what each brand is really selling. King Smith is about a tidy, low cost way to add steps at home. LifeSpan is about a workhorse you can lean on for years. Neither is overpriced for what it is.
Which should you buy
Choose LifeSpan if you want the more durable machine, plan to use it for hours every working day, value a longer warranty, or might want a running option down the line. Choose King Smith if space is tight, you need to fold and store it, you want app control, or you want to keep the cost down while still getting your steps in.
If you are still weighing up the format itself, our guide on the walking pads collection pages and the individual product specs will help you match a model to your room and your routine.
Common questions
Is LifeSpan or King Smith better for a standing desk?
Both work under a standing desk. LifeSpan under-desk treadmills are built specifically for that job and tend to be more robust for all day use. King Smith pads are slimmer and easier to slide away, which suits smaller setups.
Can you run on a King Smith walking pad?
Some King Smith models with a fold up handrail allow faster paces, but many of the slim pads are made for walking only. Always check the top speed and belt size on the specific model before buying if running matters to you.
Is King Smith cheaper than LifeSpan?
Generally yes. King Smith usually costs less, reflecting its lighter, foldable design. LifeSpan asks more for a heavier frame, higher weight capacities on many models, and longer warranty cover.
Which lasts longer?
Durability depends on the model and how you use it, but LifeSpan's heavier construction and warranty terms are aimed at long term daily use, which is why many desk workers pick it for a machine that stays put.
Still not sure which suits you? Have a look at both ranges and compare the specs that matter for your space and pace. Every walking pad we sell is genuine stock from an authorised UK dealer, with free UK delivery and a 30-day money-back guarantee, so you can buy with confidence.