London is blessed to be full of gyms, studios, and workout spaces, but when there's so much choice, it's often hard to know where to start. Fear not, Team HELLO! has been scouting the most popular workouts across the city to get our blood pumping and endorphins flowing.
According to fitness expert Sarah Spence, you're way more likely to stick to your guns if you book a class, planning your schedule around your workouts and not vice versa. Plus, exercising in a room full of people is the best way to stay motivated, she revealed in a new 'Keeping Up Appearances' study.
"You've got to build the discipline; set your clothes out, plan your week, set your alarm, book your classes, do your food shop when you’re not hungry, plan your meals, and show up on the days you don’t want to. If that’s still tough; book a class with a friend so you can’t let them down or tell someone your plan for the week and get them to keep you accountable," she says.
From high-intensity interval training (HIIT) to rowing, hot yoga, spinning and Pilates, check out the best fitness classes in London.
Aligné Studio
What is it?
Having just opened in winter 2025, Aligné Studio is still the relatively new kid on the fancy block of Great Portland Street. A stone's throw away from bustling Oxford Street, it really is a sanctuary and calm haven for Pilates lovers to practise their craft, whether you're a beginner or advanced.
Set up by two friends and instructors who met during Pilates training, Justine and Amanda, Aligné is all about building a community where people feel able and empowered to find their perfect alignment – hence the name.
The studio also goes a step further. Apart from hosting regular mat classes, it also offers infrared mat classes, as well as Reformer and Tower classes.
What's it like?
As soon as you walk through the door, you immediately feel a sense of calm. The studio is split into two levels – with Reformer classes on the ground floor and mat classes in the basement. Both workout areas are small, accommodating around seven people in each class. But the intimate space only enhances that sense of community and means the instructors are keeping an eagle eye on your every move, and able to step in quickly to help.
Half of Team HELLO! tried the Reformer/Tower class – and it was tough! But it was definitely nice to mix it up and experience using the tower equipment too. The ground floor studio is also beautifully bathed in natural light. The other half of Team HELLO! was downstairs trying out the infrared mat class. To an outsider, it may appear like we weren't doing much, but those small movements definitely worked our muscles. The benefit of having infrared mats also meant a faster recovery. As expected, it was a little warm lying on a heated mat, but I can imagine those classes in winter must feel like a big warm cosy hug.
Overall, two brilliant classes by knowledgeable, friendly, and enthusiastic instructors.
Is it good for beginners?
As one of our instructors Arabella explained, anyone can take part in an Aligné class. The website filters classes into different levels, but in reality a beginner can join the same Reformer class as someone who is more advanced, because the classes are so small and the instructors are so on it, that they're there to help you progress. Their aim is to really develop personalised coaching, which isn't always a given in big busy London studios!
How much is it?
One 45-minute class starts at £35. There are also some good-for-value intro packs, like the unlimited two week offer for £90, or three classes for £50 (with a two-week validity). Memberships start from £110 per month.
Book at alignestudio.co.uk
Reviewed by Team HELLO!
Gymbox
What is it?
Gymbox is London's coolest chain of gyms, hands down. The posters outside read "Sinning 1am, Spinning 11am", proving that while the classes are hardcore, the equipment top of the range and the trainers among the best in the capital, Gymbox doesn't take itself too seriously.
There are studios in Farringdon, Elephant and Castle, Bank, Victoria, Old Street, Ealing, Holborn and both Westfields, with the space super-cool, with DJs on the gym floor and the most unique classes on offer, plus huge free weights areas and cardio and combat offerings.
What's it like?
Impossibly cool and seriously inspiring. Gymbox's studios are some of the most impressive out there, with a boutique feel you rarely get in larger workout spaces.
The classes are perhaps the biggest draw, with unique sessions on every timetable. Take the K-Pop dance class, which invites members to channel their inner K-Pop idols and Rucking, a challenging hour spent running with a 10kg rucksack interspersed with weights and cardio moves.
The combo of running in the outside world and doing weights on the gym floor is hugely motivating, with the change in scenery refreshing weary muscles. Plus the trainers are supportive, making you feel you can keep going even when the rucksack feels impossibly heavy.
When you're in the mood for a rest rather than a sweat sesh, Gymbox also offers ultra-zen classes for a self-care hit, including the brand new 202Vibe session, which comprises mindfulness, breathwork and an aura reading, hosted by an aura expert. The blissful class aims to help us rest to become the best version of ourselves, enhancing emotional resilience, encouraging self-reflection, and boosting mindfulness . Ideal if you struggle to schedule me-time around a busy exercise schedule!
Is it good for beginners?
As well as the inventive classes (most of which can be tailored to your fitness level), Gymbox also offers classic classes such as spin and yoga, for people who want to do a session more familiar to them before plunging into Gymbox's wackier options. They also offer a programme of classes designed for recouperation, including one where you can lie in a hamock, letting your troubles melt away - dreamy!
How much is it?
From £83 per month – when you realise gym classes normally cost upwards of £20 per session, £83 per month is reasonable!
Book at gymbox.com
Reviewed by Melanie Macleod, Wellness Editor
BARRY'S
What is it?
Barry's (formerly Barry's Bootcamp) first launched in the US in 1998 thanks to LA-based instructor Barry Jay, and is now widely considered the original and best boutique HIIT class. What began in Hollywood has gone global, with over 140,000 people taking part in classes across 94 studios worldwide every week.
What's it like?
Pure energy interval training. One minute you’re sprinting on a treadmill, the next you’re on the floor lifting heavy - all to a banging playlist that hits as hard as the workout. Each 60-minute class is split 50/50 between treads and strength, or you can go all-in on one.
Studios (or Red Rooms) are more luxurious than your average gym and bathed in Barry's signature red lighting, while the instructors are super motivating, pushing you just enough to challenge every muscle. It’s tough but totally addictive and you’ll always leave class feeling amazing.
Is it good for beginners?
Yes, it’s beginner-friendly, but it’s intense, so being mentally prepared definitely helps. The pace and energy can feel full-on at first, but you’re always encouraged to go at your own speed and in my experience the instructor's intimidating drill-sergeant stereotype has never applied.
How much is it?
Memberships start from £160 a month for eight classes, but first-timers can buy a three-class pack for £50.
Book at barrys.com
Reviewed by Hollie Brotherton, Digital Luxe & Commerce Editor
1REBEL
© 1RebelWhat is it?
Pounding music blasting pop and EDM anthems, dimly lit studios and disco lighting, 1REBEL is high energy and high intensity. The studios are very chic and pride themselves on being LGBTQ+ friendly – and the changing rooms have hair straighteners and beauty essentials on-hand if you're heading straight to work or post-spin drinks. Choose between RIDE (cycling), REFORMER (Pilates), RUMBLE (boxing) or RESHAPE, their signature class mixing treadmill sprints and bench work. Classes are 45 minutes long and trust me, they live up to the hype.
What’s it like?
I’ll confess – I am a 1REBEL addict. I am now the kind of person who turns down evening plans so I can get up at 6am for RIDE. Having started my (fairly recent) spinning journey in 2023, I find 1REBEL the best option in London. The resistance is higher, the music is better and the teachers will push you harder than other classes, but it's also a lot more fun. The playlists and structured format of the sessions are motivational; you're sweating, but you're enjoying yourself. I particularly love the themed sessions which tend to take place on a Friday – *NSYNC v. N-Dubz was a personal highlight.
Is it good for beginners?
It’s intense, but everyone has to start somewhere. When I first bit the bullet and tried RESHAPE (their hardest class), I nearly fell off my treadmill in shock at how fast everyone was going. But when I emerged, red-faced and panting, the sense of pride I felt was unparalleled. Tell reception that it’s your first time and make sure you’re waiting outside the class for a pre-session induction. 1REBEL also offers special Rebuild Sessions every Monday which are 75% of the intensity of a normal session and a great way to ease in for beginners.
How much is it?
I’m not going to lie, it’s expensive. The best deal financially is to book the 12-month fixed contract, which ranges from a two-session pass for £38 per month all the way up to £179 per month for the top level of commitment. 1REBEL does a special introductory deal of 3 Sessions for £49 so you can see if you like it first. I book via the Classpass app which costs £70 a month and works out as one session a week with credits left over.
Book at 1rebel.com/uk
Reviewed by: Kate Thomas, Lifestyle Managing Editor
F45
© Andrea CaamanoWhat is it?
F45 offers high-intensity functional group workouts that last for 45 minutes and are quick, fun and different every time. Each day is focused on a different type of workout such as resistance-based strength training, cardio or a hybrid of both.
What’s it like?
I have been part of the F45 family for over a year, and I fall more in love with it every day. The workouts are tough, and the soreness is real, but my particular gym has great coaches who really care about my journey. They want me to do my exercises properly and they also help with any questions I have about nutrition, such as how to add more protein to my diet etc. It’s not only the coaches though, but the other members also help make it a fun and safe space to disconnect from the real world, every day. Apart from the daily classes, my gym likes to have social days, where we all gather and get to know each other a bit more and have more fun: think picnics, social drinks in the local pub etc.
Is it good for beginners?
It’s not easy, but the coaches are there to help you finish the class in one piece. In my personal experience, the first six weeks were tough, and then, as I saw the changes and became stronger, it became more enjoyable.
How much is it?
It depends on each studio, as they are franchises and offer different deals. I started off by paying for 12 classes a month and after a year and knowing that I wasn’t going to stop going anytime soon, I got myself a year pass, which obviously ended up being cheaper. Most studios offer a special trial price, so I would suggest starting there and seeing if F45 is for you. If it is, and I am confident it will be, then talk to the manager to try and find the best deal for you. It’s not cheap, but if like me you have no other vices, then this is definitely worth it.
Book at f45training.com
Reviewed by: Andrea Caamano, Website Editor
HOTPOD YOGA
© HotpodWhat is it?
Yoga in 37 degree heat in a giant purple tent. The practice is Vinyasa Flow, a yoga style that synchronises movement and breath, helping work the body and calm the mind. Hot yoga benefits improving your flexibility, bone density, and cardiovascular fitness. It's meant to burn a lot more calories than regular yoga, but the mental benefits for me are key. I find it reduces stress, helps clear my mind for the challenging day ahead, or relaxes me at the end of a busy day.
All you need is a mat, a towel to mop up your sweat and a water bottle - rehydration is key. Classes also include Nurturing Flow (perfect for relaxing at the end of the day) and Dynamic Flow (to work up even more of a sweat), but I find the regular Hotpod Flow to be the perfect mix of dynamic and zen.
What's it like?
A big sweaty hug. The giant purple tent is one of the most relaxing places on earth; the room is dark, the air is filled with essential oils and a jangly soundtrack accompanies the flow. Hotpod is now so integral to my weekly routine that I find myself feeling anxious if I miss entering a meditative state and the chance to sweat out all my worries. The temperature is high so be warned - if you don't like being hot and clammy, it's probably not for you. As a very sweaty human, I love the fact it's dimly lit, reducing any embarrassment from beads of perspiration dripping off your body.
Is it good for beginners?
Absolutely. Every class begins post warm-up with the teacher talking you through the three basic levels of Vinyasa so first-timers are always able to follow along. The vibe is very much moving at your own pace and only doing what you feel comfortable with, while more experienced yogis are given space to try advanced moves they might be working on. I was a complete yoga novice before trying Hotpod and now I can't get enough of a Downward Dog.
How much is it?
A mini membership is currently £48 per month for one class per calendar week (an excellent deal pre-cost of living increases), and £120 per month for unlimited classes. Otherwise, it's £18 for a single class pass. They have some amazing intro offers like £22 for 10 Days Unlimited at select studios so it's worth keeping an eye out for deals.
Book at hotpodyoga.com
Reviewed by: Kate Thomas, Lifestyle Managing Editor
ROWBOTS
© RowbotsWhat is it?
The popular rowing-based exercise classes promise to burn up to 800 calories during 50 minutes of high-intensity, low-impact mental and physical conditioning. Their signature class offers maximum intensity training, with split intervals between the floor (think burpees, weighted squats and jump lunges) and the rowing machine. Rowbots prides itself on being backed by science – they have an in-house psychologist and classes boast unique themes, integrating psychological, mental conditioning and mindfulness techniques into their classes to help build your stamina and willpower.
What's it like?
Rowbots is not just a fancy fitness studio with high-tech equipment; it's a place that seamlessly melds physical endurance with mental resilience…The type of class I'd never quite experienced before! Led by an expert instructor, I found that the class had the perfect balance between pushing me to my limits and providing much-appreciated guidance. The studio boasts state-of-the-art rowing equipment and well-maintained facilities, ensuring a seamless workout experience. What's more, Rowbots created an environment where individuals (like myself) of all fitness levels could challenge themselves and support one another in their fitness journey. After the class was done, I left feeling impressed and that I had achieved something quite challenging.
Is it good for beginners?
In short… no. While the class pushed me to my limits and the instructor was very encouraging, allowing me to do as much as I felt comfortable with and suggesting adaptations where necessary, it was definitely not suitable for anyone brand new to exercise. However, for those looking to challenge themselves, it's a fantastic option to get you moving and break you out of your comfort zone.
How much is it?
A single class will set you back £24 or you can buy a bundle of £69 for three. The cheapest deal is £12 for an Express 30-minute lunchtime class, which for London is pretty decent value.
Book at rowbots.co.uk
Reviewed by: Sharnaz Shahid, Deputy Online Editor
Reform RX at White City House
© Reform RXWhat is it?
Reform RX has been dubbed the "evolution of Pilates". Founded by husband and wife duo Neal and Yvette McGaffin, the aim is to make access to Reformer classes as easy as possible thanks to a digitally connected Pilates reformer. I tried it at the exclusive White City House.
What's it like?
Seamless to use. I took my time to get myself set up on the machine, exploring the expansive catalogue of (100+) classes on offer and getting to grips with the Reformer. I found the functionality simple to use, while the machine itself was really comfy, clean, and felt premium. Everything you need is at your fingertips; warm ups, cool downs, and everything ranging from quick 20-minute classes to an intense 60-minute session if you really want to feel the burn. Since there's something for every level (broken down by Strength, Cardio and Flexibility), I tried both a shorter beginner workout and a longer intermediate session, which worked my muscles to the max. I found the virtual instructors to be clear and their moves simple to follow.
I loved the on-demand nature of it – there's no rushing to avoid missing your class during rush hour or a pesky fine if you need to cancel your session. While I may not have made the most of all the machine had to offer (I couldn't get the Bluetooth connectivity to sync with my phone), I don't doubt I'd be a regular if there was one near me.
Is it good for beginners?
100 percent! I'm no Reformer Pilates expert, having only tried a bog standard beginners class (which I got bored of after a few sessions) or a high-energy session (which was hard to follow due to the low lighting and pumping music). But Reform RX is perfect for beginners and is an easy way to see whether it's the right exercise for you, taking it slow and at your own pace. I was able to pause my virtual class to check I had got the positioning right, and fast forward through one particular exercise that wasn't working for my lower back pain.
DISCOVER: I am a fitness expert and these 4 simple habits will keep you healthy and strong during menopause
How much is it?
The RX machine at White City House can be accessed by Soho House members.
Find out more at reformrx.com
Reviewed by: Kate Thomas, Lifestyle Managing Editor
REFORMCORE
What is it?
From the experts who brought you Barrecore, this reformer pilates class is sure to leave your body burning. The class is specifically curated for power, strength and core-fitness using reformer pilates machines and other equipment.
What’s it like?
As a former dancer, I thought I was going to walk in and find the class a breeze and I couldn't have been more wrong. It was one of the most challenging classes I have ever participated in. As someone who usually does HIIT workouts and running, it was a complete change of pace. Rather than crashing through a 30-second set, each exercise is performed slowly and deeply for maximum effect. It opened my eyes to all elements of my fitness and strength that need work and made me really think about how I'm going to be able to build Reformer Pilates into my regular workout routine. I love that it trains your muscles whilst also aiding flexibility as this is something I have lost over the years.
Is it good for beginners?
Whilst I found it incredibly hard, the instructor was with me the entire session and at the beginning of class explained that if you have to come out of an exercise it doesn't matter, all that matters is that you try your best which was encouraging. I also noticed that even the ladies in my class who had done reformer pilates before struggled at times which shows what a brilliant workout it is, so as a beginner I felt incredibly comfortable despite my shaking!
How much is it?
The prices for the class vary and there are several ways you can sign up. The first is with a membership and there is a special discounted offer if it's your first time which is £49 for four classes. After that, you can join onto their normal monthly memberships which start at £110 a month for four classes a month to £240.00 for unlimited classes. Instead of a membership, you can buy blocks of classes if you don't want to commit to annual payments classes start at £30 for one class, to £410 for a block of 20 sessions. You can also book the classes through class pass where memberships start at £39 a month.
Book at Reformcore.com
Reviewed by: Isabelle Casey, Reporter
