Asics Mega Blast vs Dino Fish Xiaon: Two Versatile Trainers Compared

Introduction

Two trainers, one comparison. The Asics Mega Blast is a premium super trainer that has earned a reputation as a near-perfect do-everything shoe, while the Dino Fish Xiaon is a carbon-free daily trainer that promises similar versatility at a much lower price. We put both through daily training, long runs, and tempo work to see where each one shines.

Quick Specs and Pricing

The Dino Fish Xiaon sits between £110 and £170 in the UK and around $150 in the US, though it is settling closer to $130 to $150 depending on the distributor. It weighs 190 g (6.7 oz) for men in a size 8.5 with a 7 mm drop. The Asics Mega Blast costs £210 or $225, weighs 225 g (7.9 oz) for men in a size 8, and has an 8 mm drop.

That price gap is the story of this comparison. If you can find the Dino Fish Xiaon near its lower listed price, the value argument gets hard to ignore. If both cost the same, the conversation changes.

Dino Fish Xiaon

The Dino Fish Xiaon is a carbon-free daily trainer built for comfort, durability, and consistent performance across higher mileage. It is aimed at road runners and marathon preparation, with a ride that prioritizes cushioning and stability over the aggressive feel of plated shoes.

The midsole uses a TPE supercritical foam that delivers a soft, resilient feel with good energy return over long efforts. An engineered woven upper focuses on breathability and fit with a wider toe box, while a widened platform and added heel structure improve stability. A full-coverage rubber outsole adds durability and grip for daily road training.

Asics Mega Blast

The Mega Blast is the new super trainer in Asics’ Blast line, following the well-loved Superblast and Superblast 2. It aims to be even more versatile, delivering a lightweight, responsive ride across a wide range of sessions.

That versatility comes from an FF Turbo Squared midsole that balances a cushioned, smooth ride with a high level of energy return. The ASICS Grip outsole enhances traction and control for smooth acceleration and efficient energy use, and the lightweight engineered woven upper keeps feet cool when the pace picks up.

Ride Feel and Performance

Both shoes are genuinely capable all-rounders. They are bouncy, fun to run in, and perform well at nearly every pace, but both flourish most in the steady band: threshold work, tempo runs, progression sessions, and long runs where you start moving through the gears.

The Mega Blast feels more stable at easy paces and lands with a comfortable, protective base that helps your legs feel fresh at the end of long efforts. Runners have logged full marathon builds and even marathons in it with no rubbing or discomfort. The Dino Fish Xiaon counters with a more aggressively rockered design and a noticeably lighter feel. It transitions more smoothly off the heel for heel strikers and feels snappier at faster efforts, making it the better pick of the two for track work.

The foam feel differs subtly too. The Mega Blast has that distinct squishy bounce returning on each stride, while the Dino Fish feels more subtle and responsive, with a resilient foam that gives energy back quickly rather than feeling especially soft.

Fit and Sizing

The fit advice here is consistent: stay true to size in the Mega Blast, and go half a size up in the Dino Fish Xiaon.

Testers found the Mega Blast comfortable in their normal running shoe size with no issues across marathon training. It tapers fairly sharply around the little toe, so runners with very wide-spread toes might notice some rubbing on the outside edge, but not enough to size up.

The Dino Fish Xiaon runs small, particularly in UK sizing, so a half size up was the right call for both testers. It is also a narrow shoe, and even average-width feet felt pressure against the sides, so wider feet will definitely notice. The stock laces drew criticism too, with one tester planning to swap them out.

Things to Consider Before Buying

Availability and price matter as much as performance here. The Dino Fish Xiaon can be tricky to find in some western markets, and buyers sometimes face shipping costs and extra hoops to work out the final price, though roughly £130 or $150 is a reasonable expectation. Even at that price it undercuts the Mega Blast significantly.

For the Mega Blast, the question is purely whether its premium price is worth it to you. Its performance is excellent at every speed with no real flaws, but several cheaper trainers now challenge it, and if the Mega Blast cost the same as its rivals it would likely win outright.

Which One Should You Buy?

If both shoes cost the same, the Mega Blast is the easier recommendation. It offers a more stable ride, extra comfort, and better performance at the easy paces where you spend most of your training time. If you can get the Dino Fish Xiaon at or near its lower listed price, the value flips: the performance gap is very close, and its lighter, more rockered ride suits runners who love an aggressive feel and want one shoe for everything.

One simple way to decide: pick the Mega Blast if you prioritize cushioning and stability at slower paces, and the Dino Fish Xiaon if you want a speedier, rockered ride and the best price-to-performance ratio.

Conclusion

These are two of the most capable all-round trainers available right now. The Asics Mega Blast is the more complete and comfortable shoe, while the Dino Fish Xiaon is the smarter buy on value, with performance close enough that the price gap does the deciding for you. You will not go far wrong with either.