Nike Invincible 3 vs Nike Infinity Run 4: Which Nike Daily Trainer Should You Buy?

Introduction

Nike’s Invincible 3 and Infinity Run 4 are both aimed at easy and long runs, but they take very different paths to get there. One leans into massive cushioning and bounce, the other into stability and support. This comparison walks through the fit, the ride, and which shoe makes more sense for your rotation.

It is worth saying upfront that several testers felt the previous versions of both shoes were stronger, so if you can find last season’s models at a discount, they deserve a look. But if you are choosing purely between these two, there is a clear pick for most runners.

Meet the Two Shoes

The Nike Invincible 3 is a max-cushion shoe built around ZoomX foam. It is designed mainly for easy and long runs, offering a lot of bounce and a very plush feel. It launched earlier this year at about £170 or $180, and since it has been on shelves for a few months, you may find it slightly cheaper now.

The Nike Infinity Run 4 is the latest version of Nike’s Infinity line, with the new ReactX midsole foam, which is designed to be more environmentally friendly and to increase energy return by 13 percent. It is a very stable shoe with a revamped, fresh-looking design, best suited to easy and recovery runs, and it costs £155 or $160.

Fit and Uppers

Both shoes fit true to size in your normal Nike running shoe size, with no need to size up or down. One tester wore a UK 9 (US 10) in both and found a good amount of toe box room, reasonable midfoot hold, and an acceptable heel fit.

There are differences, though. The Invincible 3’s heel is a bit more slippery, and while significant heel rubbing is not universal, it is something to watch for. Some testers also felt the Invincible ran slightly long up front in the toes. The Infinity Run 4 has a snugger, bootie-style upper that wraps the foot and gives a more locked-in feel, which suits high-arched runners particularly well. The Invincible’s upper is more relaxed, with a wide toe box, but some runners may need to tweak lacing to get secure.

Ride and Performance

The Invincible 3 is the livelier, more energetic shoe of the two. ZoomX foam gives a big sink-in followed by a nice amount of bounce back, and there is genuine scope to run a little quicker in it than in the Infinity. It is also the lighter shoe of the pair.

That said, the bounce is not the most dynamic. Because there is no plate directing the energy and the foam stack is so big, your foot sinks in and wobbles around a little, so some momentum is lost. It is a very enjoyable and comfortable shoe at the right time, but runners with niggles or those wanting a firmer, more secure base may find it wobbly, and it may not be a shoe to trust for the bulk of marathon training miles.

The Infinity Run 4’s ReactX foam is softer than the React foam in previous versions but firmer than ZoomX. It has lost some responsiveness in the process, and the ride feels firmer, stable, accommodating, and supportive rather than bouncy. Arch support issues some testers had with earlier versions are less prominent here. It is comfortable for easy and moderate paces, but it is a heavier shoe and it feels slightly clunky, so it is not really responsive enough for tempo sessions. Beyond about five miles, some testers felt the soft midsole sapped energy without giving much back.

Outsole and Durability

The outsole designs of the two shoes are very similar, with the Invincible 3 offering slightly more protection at the heel and forefoot. Durability is expected to be broadly comparable between the two.

Both are built for road and pavement, and both handled lighter trail use without wearing away at the outsole, so mixing up surfaces a little is not a problem.

Which Should You Buy?

Of the two, the Invincible 3 is the better running shoe for most people. It is softer, bouncier, lighter, and simply more exciting to run in. If you struggle to get out the door for easy runs, it is the kind of shoe that makes those days feel appealing. Faster runners may find it clunky, but it delivers exactly what it promises: a plush, bouncy, fun daily trainer.

The Infinity Run 4 struggles more in this matchup. The upper is a bit loose, the foam is soft without much bounce back, and it is heavy. The big selling point of earlier Infinity versions, a stable and reliable ride, has been diluted, and there are more stable neutral options elsewhere, including within Nike’s own range. If you are on a budget, it may be worth saving your money for last season’s Infinity 3 or Invincible 2 instead. A popular strategy is to pick up both older models at a discount: the Invincible 2 as a fun, plush easy-run shoe and the Infinity 3 as a more stable workhorse.

Conclusion

Between these two current Nike trainers, the Invincible 3 gets the vote. Its ZoomX midsole is something you will not find anywhere else, and it is a genuinely enjoyable shoe for easy and long runs with room to pick up the pace. The Infinity Run 4 is comfortable and stable enough for short easy runs, but it is not different or versatile enough to earn a spot in most rotations. Buy the Invincible 3 if you want one shoe for many different easy runs, and consider the Infinity Run 4 only if consistent, supportive comfort is your single priority.