7 Best Adjustable Dumbbells UK 2025 | Complete Buyer's Guide

Home fitness has revolutionized how we approach strength training. Gone are the days when you needed a full rack of dumbbells taking up half your living room. Adjustable dumbbells have become the go-to solution for fitness enthusiasts across the UK, offering the convenience of multiple weights in one compact design.

This comprehensive guide examines the top 7 best adjustable dumbbells uk available in the UK market for 2025. We'll help you find the perfect adjustable dumbbell set that matches your fitness goals, budget, and space requirements. From quick-select dial systems to traditional spinlock designs, we've tested and reviewed the best options to save you time and money.

What Makes the Best Adjustable Dumbbells?

Before diving into our top picks, it's essential to understand what separates exceptional adjustable dumbbells from mediocre ones. Several key factors determine the quality and value of an adjustable weight set dumbbells.

Weight Range and Increments

The best adjustable dumbbells offer a wide weight range with reasonable increments. Most quality sets start from 2.5kg and extend to at least 24kg per dumbbell. Some premium models reach up to 40kg, providing enough resistance for advanced lifters. The increment system should allow for progressive overload, typically in 2.5kg steps.

Build Quality and Durability

Premium adjustable dumbbells feature robust construction with high-grade materials. Look for solid steel weight plates, reinforced handles, and reliable locking mechanisms. The best models withstand years of regular use without wobbling, breaking, or wearing down.

Ease of Weight Changes

Quick weight adjustment separates good adjustable dumbbells from great ones. The fastest systems use dial or pin mechanisms that change weights in under 15 seconds. Traditional spinlock designs take longer but often cost less.

Space Efficiency

Adjustable dumbbells should significantly reduce your equipment footprint. The best models include compact storage solutions like cradles or racks, keeping your workout area organized and safe.

7 Best Adjustable Dumbbells in the UK (2025)

1. Shark Power Gear Adjustable Dumbbell Set (24kg)

The Shark Power Gear Adjustable Dumbbell stands out as an exceptional value proposition in the UK market. With its quick-select dial system and 10 weight levels, this dumbbell offers professional-grade functionality at an accessible price point.

Key Features:

• Weight range: 2.5kg to 24kg (10 levels)

• Quick-dial adjustment system

• Non-slip grip handle

• Compact storage cradle included

• Premium build quality

Weight Levels: 2.5kg | 5kg | 7.5kg | 10kg | 12.5kg | 15kg | 17.5kg | 20kg | 22.5kg | 24kg

The dial mechanism allows instant weight changes, making it perfect for circuit training or drop sets. The ergonomic handle provides excellent grip, while the balanced weight distribution ensures smooth movements during exercises.

Price: £89.99 (single), £179.99 (pair)

Best For: Home gyms, beginners to intermediate users

2. Bowflex SelectTech 552i

Bowflex remains a household name in adjustable dumbbells, and the SelectTech 552i continues this legacy. This model combines proven reliability with smart connectivity features.

Key Features:

• Weight range: 2.3kg to 24kg

• 15 weight settings

• Bluetooth connectivity with Bowflex app

• Space-efficient design

• Patented selection system

The SelectTech system uses a unique plate selection mechanism that's both secure and quick. The integrated app tracking adds value for tech-savvy users who want to monitor their progress.

Price: Around £400-500 (pair)

Best For: Tech enthusiasts, established home gyms

3. PowerBlock Sport 24

PowerBlock's distinctive expandable design sets it apart from traditional adjustable dumbbells. The Sport 24 offers exceptional versatility with its modular weight system.

Key Features:

• Weight range: 1.4kg to 24kg

• Expandable to 50kg with additional kits

• Quick pin-selection system

• Compact, stackable design

• Durable steel construction

The expandable nature means you can start with the base set and add weight as you progress, making it a long-term investment for serious lifters.

Price: Around £300-400 (pair)

Best For: Progressive training, long-term investment

4. Nuobell 5-50kg Adjustable Dumbbells

For serious strength training, the Nuobell offers one of the widest weight ranges available. Its innovative twist-to-adjust mechanism provides smooth weight changes across an impressive range.

Key Features:

• Weight range: 5kg to 50kg

• 16 weight settings

• Twist adjustment mechanism

• Professional-grade construction

• Balanced weight distribution

The Nuobell's higher weight capacity makes it suitable for advanced lifters who need serious resistance for compound movements.

Price: Around £800-900 (pair)

Best For: Advanced lifters, commercial use

5. Yes4All Adjustable Dumbbells (Spinlock Style)

For budget-conscious buyers, Yes4All offers a traditional spinlock design that delivers solid performance without premium pricing. While not as quick to adjust, these dumbbells provide excellent value.

Key Features:

• Weight range: Varies by set (up to 20kg typical)

• Traditional spinlock collars

• Cast iron plates

• Textured handles

• Multiple weight plate configurations

The spinlock design requires manual plate changes, taking longer than dial systems but offering proven reliability and affordability.

Price: Around £60-120 (pair)

Best For: Budget buyers, basic home gyms

6. Core Home Fitness Adjustable Dumbbells

Core Home Fitness combines affordability with modern convenience in their adjustable dumbbell design. The lever-based system provides secure weight changes without the premium price tag.

Key Features:

• Weight range: 2.3kg to 22.7kg

• Lever adjustment system

• 12 weight settings

• Compact storage trays

• Durable construction

The lever system strikes a balance between speed and cost, offering faster changes than spinlocks but at a lower price than premium dial systems.

Price: Around £250-350 (pair)

Best For: Mid-range buyers, versatile training

7. Ativafit Adjustable Dumbbells

Ativafit offers a dial-based system similar to premium brands but at a more accessible price point. Their dumbbells provide good functionality for home users on a budget.

Key Features:

• Weight range: 2.5kg to 24kg

• 15 weight levels

• Dial selection system

• Anti-rolling design

• Space-saving storage

While not matching the build quality of premium options, Ativafit dumbbells offer decent performance for casual to moderate users.

Price: Around £150-200 (pair)

Best For: Casual users, budget-conscious buyers

Adjustable Dumbbells Comparison Table

Buyer's Guide: Choosing Your Perfect Adjustable Dumbbells

Determine Your Weight Requirements

Start by honestly assessing your current strength level and future goals. Beginners typically need 2.5kg to 15kg per dumbbell, while intermediate users benefit from 2.5kg to 24kg ranges. Advanced lifters should consider sets extending to 40kg or more, such as adjustable dumbbells 40kg.

Consider the exercises you'll perform most frequently. Isolation movements like bicep curls require lighter weights, while compound exercises like chest presses need heavier resistance. Choose a set that accommodates your heaviest planned exercises.

Budget Considerations

Adjustable dumbbells range from £60 for basic spinlock sets to over £900 for premium models. However, consider the long-term value compared to gym memberships or buying individual dumbbells.

Budget options like spinlock designs work well for beginners or occasional users. Mid-range lever systems offer good convenience without premium pricing. High-end dial systems provide maximum convenience and durability for serious users.

Space and Storage

Measure your available space before purchasing. Most adjustable dumbbells require a footprint of approximately 60cm x 30cm for storage cradles. Consider ceiling height for overhead exercises and ensure adequate clearance around your workout area.

Some models include wall-mounting options or compact storage solutions that minimize floor space requirements. Factor in storage when comparing models, as included cradles or racks add significant value.

Adjustment Speed and Convenience

Quick-change mechanisms become increasingly valuable as you advance in your training. Circuit workouts, drop sets, and supersets all benefit from rapid weight changes.

Dial systems typically change weights in 5-15 seconds, while lever mechanisms take 15-30 seconds. Spinlock designs may require 1-2 minutes for significant weight changes but cost considerably less.

Build Quality and Warranty

Invest in quality construction that will withstand regular use. Look for solid metal components, secure locking mechanisms, and comfortable handles. Read user reviews focusing on long-term durability and customer service experiences.

Most reputable brands offer warranties ranging from 1-5 years. Longer warranties typically indicate manufacturer confidence in build quality and provide peace of mind for your investment.

Transform Your Home Gym with the Right Choice

Selecting the best adjustable dumbbells for your UK home gym depends on balancing your fitness goals, budget, and space constraints. The Shark Power Gear Adjustable Dumbbell Set offers exceptional value with its quick-dial system and comprehensive weight range, making it our top recommendation for most users.

For those seeking premium features and willing to invest more, the Bowflex SelectTech 552i provides excellent build quality with smart connectivity. Budget-conscious buyers should consider Yes4All spinlock designs, while serious lifters may prefer the Nuobell's extended weight range.

Remember that the best adjustable dumbbell set is the one you'll use consistently. Consider your workout style, space limitations, and long-term fitness goals when making your decision. With the right adjustable dumbbells, you'll have everything needed for effective strength training in the comfort of your home.

Ready to upgrade your home gym? Explore the Shark Power Gear collection to find the perfect adjustable dumbbell set for your fitness journey.