The TRUE Z500 treadmill is what I now recommend instead of the TRUE M50, which has been discontinued and is no longer sold anywhere. After two decades of testing treadmills, I can tell you the Z500 carries the same commercial-grade quality TRUE built its name on — though the Matrix TF50 XR and 3G Cardio Pro Runner X are worth knowing about too. I’m AnilKK, INFS-certified in nutrition and fitness coaching with 24 years of running experience and 250+ treadmills personally tested, and here’s my honest breakdown.
Quick Answer: The TRUE Z500 is a strong pick for serious walkers and runners who want commercial-grade build quality in a compact home footprint. Its 54″ x 20″ deck, 3.0 HP motor, and 350 lb capacity handle regular running comfortably, and TRUE’s lifetime frame and motor warranty reflects genuine confidence in the build.
Table of Contents
TRUE Z500 Treadmill: Quick Specs
| Running Deck | Motor | Max User Weight | Standout Feature | Warranty |
|---|---|---|---|---|
| 54″ x 20″ | 3.0 HP continuous-duty | 350 lbs | TRUE FITX biomechanical belt system | Lifetime frame & motor |
1. TRUE Z500 Treadmill — Commercial Quality in a Compact Footprint
Warranty: Lifetime on frame and motor, 5 years on parts, 1 year on labor.
- 54″ x 20″ running surface with TRUE FITX biomechanical impact system
- 3.0 HP continuous-duty motor, speed range 0.5–12 mph
- Incline range 0–15%
- 8.5″ LCD console, Polar heart rate compatible, 4 user profiles
- Two front transport wheels for portability
- 350 lb max user weight
- Footprint: 72″ x 27″ x 57″ | Machine weight: 249 lbs | Step-up height: 6″
The single most important thing to know about the Z500 is that it’s built with the same robotically-welded steel frame construction TRUE uses in its commercial gym equipment, just scaled down to fit a home. That’s rare at this size. TRUE’s FITX system cushions each foot strike at the front of the deck while keeping the back firmer for push-off, which is a genuinely different feel from the flat, uniform cushioning most home treadmills use.
What Makes It Different
Regular running at a sustained pace is one of the most efficient ways to build cardiovascular fitness, and the CDC notes that even 75 minutes of vigorous weekly activity delivers meaningful health benefits for most adults. The CDC’s guidelines emphasize consistency over intensity, and a deck and motor built to handle daily running without strain removes a real barrier to that consistency long-term.
The biomechanical belt system also recruits your stride more naturally than flat-cushioned decks, which matters for the muscles engaged during treadmill workouts over the course of a longer run.
Where the Z500 shows its price point is the console — an 8.5″ LCD rather than a touchscreen, with no built-in streaming apps. For the build quality underneath it, I’d take that trade-off over a flashier screen on a weaker frame every time.
Best for: Serious walkers and regular runners who want commercial-grade durability without a large footprint, and who don’t need a touchscreen console.
Pros and Cons
- The robotically-welded steel frame delivers genuine commercial-grade stability rarely found in a compact footprint.
- The lifetime frame and motor warranty reflects real confidence in the build quality.
- The FITX impact system gives a noticeably more biomechanically correct stride than flat-cushioned competitors.
- The compact 72″ x 27″ footprint fits into home gyms and spare rooms that can’t accommodate larger commercial-style machines.
- The 8.5″ LCD console feels basic next to touchscreen competitors at a similar price.
- There’s no built-in coaching app or streaming integration, so you’re relying on your own device for guided workouts.
How the Z500 Compares: Matrix TF50 XR vs. 3G Cardio Pro Runner X
The Z500 sits between two genuinely different alternatives, and after testing it alongside a step-up competitor and a more budget-friendly option, here’s how the three actually differ in practice.
| Model | Deck Size | Motor | Top Speed | Max Incline | Weight Capacity |
|---|---|---|---|---|---|
| 3G Cardio Pro Runner X | 20.5″ x 58″ | 3.0 HP | 12 mph | 15% | 350 lbs |
| TRUE Z500 | 20″ x 54″ | 3.0 HP | 12 mph | 15% | 350 lbs |
| Matrix TF50 XR | 20″ x 60″ | 3.25 HP | 12.5 mph | 15% | 400 lbs |
The Matrix TF50 XR pushes further than the Z500 on nearly every spec — a longer deck, a stronger motor, and a higher weight capacity — plus Matrix’s modular console system if you want to upgrade to a touchscreen later. It costs meaningfully more, and that gap buys genuine extra headroom if you’re a taller runner or training for serious mileage, but the Z500 isn’t leaving much performance on the table for a lower price.
The 3G Cardio Pro Runner X is the budget-friendlier option to consider if commercial-grade build quality matters more to you than TRUE or Matrix’s brand pedigree specifically. It matches the Z500 closely on motor power and incline, with a similar weight capacity, at a noticeably lower price — a legitimate alternative if you want to spend less without sacrificing much on paper.
If storage space is a bigger factor in your decision than either of these upgrades, it’s worth comparing all three against dedicated folding treadmill options before deciding, since fold size and footprint vary more than the spec sheets suggest.
How to Choose Between These Treadmills
- Your weight capacity headroom. If you’re close to the Z500 or Pro Runner X’s 350 lb limit, the Matrix TF50 XR’s 400 lb capacity gives meaningfully more room — see our guidance on treadmills for heavier users for the full headroom rule.
- Console priorities. If a touchscreen and app ecosystem matter to you, the Matrix’s modular console system pulls ahead of both the Z500 and Pro Runner X’s simpler LCD displays.
- Available storage space. All three fold, but the Z500’s 72″ x 27″ footprint is the most compact of the three if space is tight.
- Budget ceiling. If price is the primary constraint, comparing options in the under-$2,000 treadmill category broadly will help you see where the Pro Runner X sits relative to more affordable alternatives.
- Warranty priorities. A lifetime frame and motor warranty, like all three of these offer, matters more than most buyers realize — motor failure is the single most expensive treadmill repair, and this coverage removes that risk almost entirely.
Who the TRUE Z500 Is Not For
Be honest with yourself about your training goals before buying. If you’re a taller runner or training for serious weekly mileage, the Z500’s 54″ deck is shorter than some competitors, and you may be better served by a machine from our picks for serious runners with a longer running surface.
The ACSM’s guidance notes that incline work is an effective way to raise workout intensity without adding speed, which is exactly where the Z500’s 15% incline range does its best work — but if maximum deck length is your priority over incline capability, that’s a different trade-off entirely.
Frequently Asked Questions
What happened to the TRUE M50 treadmill?
The TRUE M50 has been discontinued and is no longer sold by TRUE or any authorized retailer. The TRUE Z500 is the closest current model in terms of build quality and target user, and it’s what we now recommend in its place.
Is the TRUE Z500 treadmill good for running?
Yes, the Z500 is built for regular running with a 3.0 HP continuous-duty motor and a biomechanically correct FITX belt system, though taller runners may find the 54″ deck a bit short for a full running stride.
What is the weight capacity of the TRUE Z500 treadmill?
The Z500 supports a maximum user weight of 350 lbs, matching the 3G Cardio Pro Runner X and coming in below the Matrix TF50 XR’s 400 lb capacity.
How does the TRUE Z500 compare to the Matrix TF50 XR?
The Matrix TF50 XR has a longer 60″ deck, a stronger 3.25 HP motor, a higher top speed of 12.5 mph, and a 400 lb weight capacity, versus the Z500’s 54″ deck, 12 mph top speed, and 350 lb capacity. The TF50 XR costs more but suits taller or heavier users better.
Is the 3G Cardio Pro Runner X a good alternative to the TRUE Z500?
Yes. It matches the Z500 closely on motor power, incline range, and weight capacity, at a noticeably lower price. It’s a legitimate budget alternative if TRUE’s specific brand pedigree isn’t a priority for you.
Does the TRUE Z500 fold up for storage?
The Z500 has a compact 72″ x 27″ footprint and includes front transport wheels for repositioning, making it easier to fit into a home gym or spare room than larger commercial-style treadmills.
Do I need a subscription to use the TRUE Z500?
No. The Z500 has built-in workout programs and Polar heart rate compatibility, so no ongoing subscription is required to use its core features.
What warranty does the TRUE Z500 treadmill come with?
TRUE backs the Z500 with a lifetime warranty on the frame and motor, plus 5 years on parts and 1 year on labor — strong coverage that reflects the machine’s commercial-grade construction.
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