The 5 best Bosu Balls of 2021

The BOSU ball Balance Trainer, originally an acronym of BOth Side Up (both sides useful), is a semi-sphere or half balance ball, usually made of latex, that can be used by people of all classes and ages. When it is well inflated, its height is about 7.5/10 inches and its diameter is between 17 and 26 in.

It was created as an improvement on fitball, under the premise that the best type of training is functional (it trains movements, not muscles). This variety of training defends that the body is a whole where each gesture involves altering the rest of the chain, and therefore BOSU seeks to work the muscles as a whole by proposing global movements that activate the muscles simultaneously. In this way, working an area also exercises the adjacent joints and muscle groups.

The exercises it allows, based on balance due to its unstable base, involve an adaptation of the muscles to common situations, in addition to their toning, generating cardiovascular, postural and proprioception benefits.

One of its great advantages is the great variety of workouts, from the very basic to others of an advanced level, that it allows to perform. It can also be used in combination with other devices such as weights, dumbbells or tensioners. Another great option is to have 2 half balls to work with both simultaneously, which considerably increases the number of exercises to be performed. It is practically impossible to get bored with it!

Although Bosu Ball has practically become a generic name, it is still a commercial brand that sells a high-quality product with a high price. However, if we look for other half balls or balance trainers we can find interesting options at a lower price and similar products that are also very interesting.

Let’s see then the 5 best bosu balls.

The original one: BOSU NexGen Pro Balance Trainer

BOSU NexGen Pro Balance Trainer

Whether you want to perform better in sports, feel better in everyday life, or improve the way your body looks and moves - the BOSU NexGen Pro Balance Trainer will get you there! ...
  • High quality
  • Easy to inflate
  • High price

It is the BOSU ball of 25.6 inches in diameter that is usually present in professional sports centers (gyms, fitness rooms …). It stands out for its excellent durability, to the point of being practically indestructible.

For example, it easily withstands the impact that occurs when jumping on it. Its only limitation is that its use is not recommended for people weighing more than 350 lbs. Its grip on the ground, without leaving a mark, is optimal. In addition to being the top of the range, it is also the best seller because it is the best in all aspects without this being translated into a much higher price than its “brothers”.

If you can afford the purchase of a Bosu ball, it is the highest quality balance trainer as well as being very robust. If the price is decisive you can take a look at other alternatives. You have all the information below these lines.

Best overall: Bosu Sport Balance Trainer

Bosu Sport Balance Trainer

BOSU Spot Balance Trainer is an unstable, dynamic surface to work out on that helps increase upper and lower body strength along with important core muscles.
  • Quality
  • Compact
  • Easy to inflate
  • Small

The “home” version of the previous one. Its main difference is durability, although in this version it is also guaranteed as long as it is not used too intensively (this is what causes gyms to tend to opt for the previous model). It also supports less weight than the PRO version (250 lbs).

The positive part, apart from a more contained price, is that it is more compact thanks to a reduced size (19.7 inches) that facilitates its storage at home. On the other hand, for some people this Bosu ball may be too small for their needs.

From our point of view, the Bosu Sport Balance Trainer it is the most balanced option between what it offers and what it costs.

The most resistant: TOGU Jumper Stability Dome

TOGU Jumper Stability Dome

Premium, German-made multifunctional training tool and trampoline ball. Great for group fitness, personal training, sport specific training, and physiotherapy
  • Resistance
  • High quality
  • Easy to inflate
  • High price

The German brand TOGU offers a concept similar to the previous ones but with some substantial difference. His TOGU Jumper: a red half ball that allows you to train your entire body in an effective and fun way.

Its technology combines the positive effects of small jumps (trampoline effect) with body training and allows exercises to improve power, coordination, balance, even resistance, reducing the impact on the joints.

The Jumper offers a high degree of versatility for both body training and physiotherapy and rehabilitation sessions.

Although it has a high price, we recommend it for people of greater weight who are going to make intensive use of this half ball.

Best budget: ATIVAFIT Half Ball Balance Trainer

ATIVAFIT Half Ball Balance Trainer

ATIVAFIT Half Ball Balance Trainer with Straps Yoga Balance Ball Anti Slip for Core Training Home Fitness Strength Exercise Workout Gym
  • Affordability
  • Versatile
  • Cheap pump

The ATIVAFIT team is made up of health specialists, engineers and developers who have been creating home workout and wellness products for more than thirty years. Its main objective is that these fitness equipment have the highest quality / price on the market so that they are affordable for all budgets. Of course, with the ATIVAFIT Half Ball Balance Trainer, they have succeeded.

The first thing that catches the attention of this model is its textured surface with spirals that give it a beautiful appearance as well as practical. The environmentally friendly toxic-free PVC material of the dome is supported on a base equipped with six rubber feet. This hemisphere, 23.4 in in diameter by 7.1 in high, is light but very resistant, making it the model that resists the most load compared to the others. Nothing more and nothing less than 660 lbs.

The included air pump is of poor quality but allows the resistance of the dome to be adjusted according to preferences. If you are looking for a product resistant to the lowest price, this is your best option.

Cheap and resistant: ZELUS Balance Ball Trainer

ZELUS Balance Ball Trainer

Exercise Ball with Resistance Bands and Foot Pump for Yoga Fitness Home Gym Workout
  • Price
  • Easy to inflate
  • Cheap bands

The quality and price of this half ball make it a wish item on this list. With it, you can start trying a different way of training that will enable you to improve your strength and balance without leaving home.

You can perform balance, strength and cardiovascular exercises on it, working hard on all parts of your body. It is designed with non-slip and wear-resistant PVC, thus ensuring you a long time of use.

One of the keys to the balance trainer, which you must take into account, is that as the pressure is lower, the difficulty of the exercise increases and thanks to this model you can inflate and deflate it quickly, comfortably and easily.

The main flaw with this product is that some testers report having problems with the bands.


From our point of view, if price is not a problem, we recommend buying BOSU NexGen Pro Balance Trainer. In case we have a tight budget, we would opt for Bosu Sport Balance Trainer because of its relationship between what it costs and what it offers.

If we want the cheapest option, ATIVAFIT Half Ball Balance Trainer or ZELUS Balance Ball Trainer are also a good choice.

If you still cannot decide, you can opt for for the most different product, the TOGU Jumper Stability Dome.


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