Best Adjustable Kettlebells in the UK for 2026: Tested Reviews

Ready to level up your home workouts? If you’re looking to maximize results without the clutter of multiple weights, adjustable kettlebells are your perfect companion. Let’s dive into the best adjustable kettlebells available in the UK for 2026, featuring tested and tried models from trusted brands like JaxJox and Bowflex.

Why Choose Adjustable Kettlebells?

Space-Saving Design: One of the most significant advantages of adjustable kettlebells is their compactness. Instead of cluttering your living room with several fixed-weight kettlebells, an adjustable model allows you to switch weights with ease, catering to various workouts without taking up much space.

Adaptable Resistance: As your fitness progresses, so should your weights. Adjustable kettlebells can grow with you. They come with an adjustable load, letting you start with lighter weights and increase resistance as you build strength.

Versatile Workouts: Whether you’re keen on a light workout with resistance for a HIIT session or heavy lifting during leg day, adjustable kettlebells can cater to all. They’re excellent for targeting multiple muscle groups, thus maximizing your workout efficiency.

Notable Benefits of Adjustable Kettlebells

1. Flexibility in Training: You’ll find that these kettlebells allow for a range of movements—from swings and squats to curls and presses. With just one kettlebell, you can perform a full-body workout, making it ideal for those short on time or space.

2. Safety and Practicality: With adjustable kettlebells, you remove the risk of overloading yourself with fixed weights. Choose a weight that suits you for each movement, ensuring both safety and effective training.

3. Portability: Perfect for those who prefer outdoor workouts or have limited workout space inside. Simply grab your adjustable kettlebell and head outside, making it a favorite for fitness enthusiasts.

Why Are Adjustable Kettlebells Pricey?

While they may seem expensive at first glance, consider the long-term savings. Instead of purchasing an entire set of kettlebells, an adjustable option allows you to have several weights in one. For example, models range from budget options around £30 to premium versions exceeding £100. Brands like JaxJox and CoreStrength offer reliable products that cater to both ends of the budget spectrum.

Safety Tips for Using Adjustable Kettlebells

For effective and secure usage, follow these essential tips:

• Proper Weight Selection: Always choose a weight that feels manageable. Master your form before attempting a heavier weight.
• Maintain a Firm Grip: Ensure that your kettlebell is stable in your hand to prevent slips or accidents.
• Focus on Posture: Always engage your core and maintain a neutral spine during lifts to avoid injuries.
• Leverage Your Hips: Remember that kettlebell movements primarily engage the hips. Stick to proper hinging mechanics to maximize your efficacy and safety during workouts.

Testing the Best Adjustable Kettlebells

The Women’s Health Lab kicked the tires on numerous adjustable kettlebells, evaluating them on design practicality, ease of weight adjustment, and overall performance during workouts. Here’s a glimpse of their top picks for 2026.

1. JAXJOX Adjustable Weight Kettlebell

• Weight Range: 5.5kg to 19kg
• Special Features: Integrated app for tracking metrics such as reps and sets. It offers six weight settings, making it highly versatile.

2. CORENGTH Adjustable Kettlebell

• Weight Range: 12kg to 24kg
• Special Features: Allows users to customize their weight using interchangeable plates, providing an easy transition between workouts.

3. Bowflex SelectTech 840 Kettlebell

• Weight Range: 3.5kg to 18kg
• Special Features: A unique dial system that allows for quick adjustments between weights, making it excellent for circuit training.

4. FunctionalFitness Cast Iron Adjustable Kettlebell

• Weight Range: 3.6kg to 18kg
• Special Features: Solid design and safety lock feature, plus it has a rubber base that protects flooring from scratches.

5. Yanzhi Adjustable Kettlebell

• Weight Range: 2.3kg to 5.4kg
• Special Features: This budget-friendly kettlebell is perfect for beginners. Simple to adjust and store, it’s an excellent lightweight option.

6. BRAINGAIN Adjustable Kettlebell

• Weight Range: 4kg to 18kg
• Special Features: Easy-to-use weight adjustment system with clearly labelled plates, ideal for those who need simplicity alongside robust functionality.

7. Perfect Fitness Adjustable Kettlebell

• Weight Range: 1.4kg to 5.5kg
• Special Features: An excellent entry-level kettlebell, perfect for mobility exercises and lighter workouts.

8. ISOGYM Adjustable Kettlebell

• Weight Range: 3.4kg to 18kg
• Special Features: Offers seven weights in one compact design, making it a smart investment for a home gym.

Explore Effective Kettlebell Exercises

Incorporate these tried-and-true kettlebell exercises into your workout routine for maximum efficiency:

• Goblet Squats: Perfect for building leg strength while engaging your core.
• Single-Arm Bent Over Rows: Focuses on back and arm strength with a solid core workout.
• Single Arm Shoulder Press: Great for building shoulder strength while engaging the core for stability.

Get Started!

With your adjustable kettlebell in hand, you’re set to unlock a whole new level of fitness potential. Whether you’re aiming for strength training, endurance, or flexibility, these versatile tools will elevate your home workouts significantly.