The 'Walled Garden' Problem
You see it everywhere: treadmills with massive 22-inch HD touchscreens that look beautiful on the showroom floor. But once you get them home, you realize the trap. If you stop paying the $40/month subscription fee, that beautiful screen becomes a useless glowing brick. Worse, many of these machines are "locked down," meaning you can't install Zwift, watch Netflix, or sync your run data to Strava without jumping through impossible technical hoops.
But there is a better way. The smartest runners today are opting for the "Bring Your Own Device" (BYOD) philosophy. By choosing a mechanically superior treadmill without a screen—or retrofitting an older one—you can connect to any app you want, upgrade your tablet whenever you like, and save thousands of dollars over the machine's lifespan.
The Gold Standard: Native FTMS Bluetooth
If you are in the market for a new treadmill, the easiest route to Zwift and Runna compatibility is buying a machine that supports Bluetooth FTMS (Fitness Machine Service). Unlike standard Bluetooth audio (which just plays music), FTMS allows the treadmill to broadcast your speed, incline, and cadence directly to the app on your iPad or Android tablet.
Here is the current reigning champion of the BYOD category. It features rapid-sync motor technology specifically designed to keep up with the interval changes in Zwift, without forcing you into a subscription:
The Horizon 7.4 AT is unique because of its "QuickDial" controls on the handgrips, which allow you to physically swipe to change speed and incline instantly—much faster than tapping a touchscreen. This makes it a favorite for the Zwift racing community.
The Budget-Friendly Workhorse
Not everyone needs a dedicated interval trainer. If you simply want a reliable, heavy-duty deck that will last for a decade and connect to your apps without fuss, Sole Fitness has been the industry leader for years. While their newer "F80" and "F85" models now include touchscreens, the entry-level F63 remains a pure, durability-focused machine that pairs easily with third-party apps.
Retrofitting a 'Dumb' Treadmill
Already own an older treadmill that works fine but lacks Bluetooth? You don't need to replace it. You can make almost any treadmill "smart" for under $100 using a few key accessories:
- The NPE Runn Sensor: This small sensor sticks to the side of your treadmill belt. It reads the optical speed of the belt stickers and broadcasts it via Bluetooth/ANT+ to Zwift. It even detects incline on many models.
- Footpods (Stryd or Zwift Pod): These clip onto your shoelaces and broadcast speed and cadence. While accurate, they don't capture the treadmill's incline.
- Heart Rate Monitors: A chest strap (like a Polar H10) is essential for accurate calorie tracking in apps like Runna.
The Future of Connected Running
For those who want the absolute cutting edge of connectivity without a built-in screen, Wahoo has recently disrupted the market. Known for their bike trainers, they have released a treadmill where the connection isn't just a feature—it is the treadmill. It uses sensors to detect your body position and automatically changes the belt speed to match your pace, no buttons required.
The Commercial-Grade Option
Finally, if you want the durability of a gym treadmill—literally the same machines found in health clubs—but want to use your own iPad for entertainment, Spirit Fitness offers the best warranty in the business. The XT485 is a tank that eschews fancy digital bloat for raw iron and steel performance, while still maintaining the Bluetooth connectivity you need for data tracking.
Summary
Don't let marketing hype fool you. A 22-inch screen does not make a treadmill "better"; it often makes it obsolete faster. By choosing a high-quality deck with open Bluetooth connectivity, or using a simple sensor on your existing machine, you gain the freedom to run in Watopia, train with Runna, or binge-watch HBO—all on your own terms.
