Use these five dumbbell deals to build muscle at home for under $50

Dumbbells are, arguably, the best home training tools money can buy, but investing in a new set can weight heavily on your wallet. Luckily, thanks to a slew of Prime Day dumbbell deals, you can now enjoy hefty discounts on some top quality products.

To help you find some great-value weights, we've done a deep-dive on Amazon and beyond and picked out the best dumbbell deals you can buy right now, from fixed-load hex weights to adjustable dumbbells. 

The fixed-weight sets are a perfect fit for dynamic exercise styles like functional strength training. However, if you're looking to build strength at home, you might be better served by adjustable dumbbells like those featured in our roundup of  the best weights deals. 

Retailer quick links

• Amazon: Deals on fitness equipment and supplements
• Best Buy: Save on big brands including Bowflex and ProForm
• Dicks Sporting Goods: Find some big ticket items with significant discounts
• Target: Fitness deals to suit all budgets 
• Walmart: Upgrade your home workout set-up with these deals

Dumbbell deals for under $50

Tru Grit 35lb Hex Elite Dumbbell | was $74.99, now $30.99 at Best Buy 

This heavier 35lb dumbbell is a great choice for strength-building multi-muscle compound exercises like squats and deadlifts, and it's now better than half price at Best Buy. It also benefits from a textured grip, robust rubber-coated heads and a hexagonal design to stop it rolling away when you pop it down mid-workout. 

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BalanceFrom Neoprene Dumbbell Hand Weights | was $52.99, now $34.99 at Amazon

Dumbbells don't grow on trees, but a dumbbell tree like this is a nifty way to store multiple weights neatly. This set has three weight options (2lb, 3lb, and 5lb) so you can switch between them to suit the exercise you're doing, and at $34.99, it's currently 34% cheaper than normal. 

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Challenging your muscles to lift the extra load of a dumbbell is a great way to build strength and muscle—you have to continually push yourself to trigger your body into making these adaptations, as per the progressive overload principle. 

Strength training is one of the best things you can do for you health, helping you build a stronger, more resilient body that's better equipped to withstand the rigors of everyday life (like running for the bus or picking up heavy objects while moving house) without injury. 

It can also boost your body awareness, balance, mood and metabolism—muscle is a metabolically active tissue, so the more you have, the more calories you'll burn at rest. 

But strength training isn't the only thing dumbbells are useful for. You can also incorporate them into HIIT workouts for fat loss or, better still, high-intensity resistance training (HIRT) sessions. 

These training styles are known for crushing calories, but they also offer a side of significant cardio perks. That's why, if you're after an all-round fitness booster, the dumbbell comes top of our list of recommendations.