Kieran Alger
A 53-time marathon finisher, 14-time ultramarathoner (including a top 100 position in the Marathon des Sables) and cofounder of The Run Testers, a YouTube running gear reviews channel, Kieran has been testing the latest running gear for more than a decade. A sub-3 marathon runner, you'll find him covering everything from virtual reality and smart scales to the latest health trackers. Kieran is also passionate about using the latest technology to hack his health in search of marginal gains and you'll always find him with a running watch on either wrist.
On a budget? These are the best running watches for under £250
These affordable gadgets are a phenomenal launchpad for tracking your running progress
What every runner should pack before a trip
Squeezing in some holiday miles? From do-it-all trainers to travel-sized recovery tools, here’s everything you need to stay race-ready, wherever you roam
The best smart rings for runners
Not sure where to start with finger-based wearable tech? Here's our guide to the best smart rings
The Ultrahuman Ring AIR is the smartest recovery tracker yet — but is it information overload?
The ring is packed with impressive features, but the avalanche of numbers won't be for everyone
The 7 best cheap running watches for under £250
These affordable gadgets are a phenomenal launchpad for tracking your running progress
The best GPS running watches in 2025 from Garmin, Apple and more
From budget-friendly gadgets to high-tech timepieces, these are the best running watches you can buy
I trained for an ultra with the Samsung Galaxy Ring — here’s why I’m still reaching for my Garmin
It's good, but it's no Garmin killer
The best Garmin watches in 2025, tested over thousands of miles
Track your pace, monitor your recovery,and stay motivated with the best Garmin watches for every type of runner
The best summer running gear essentials to help you train in the heat
From sweat-wicking singlets to hydration hacks
The 7 best electrolyte drinks, powders and tablets for running
Electrolytes play a crucial role in both running performance and recovery. Here’s our pick of the best products to keep you hydrated
Yes, you can get great running kit on a budget — here’s what to buy
Pounding terra firma doesn’t have to cost the earth. We’ve hunted down a selection of top-value kit that punches well above its price tag
The best heart rate monitors for runners in 2025
The best HR-tracking chest and arm straps for staying in the zone
The best running gaiters to help keep the trail out of your shoes
Sticks, stones, sand or dirt — these gaiters are your defensive barrier against everything the trail throws at you
The Runner's World Sports Nutrition Awards 2025
From mid-run energy gels to post-run shakes, these are best sports nutrition products to fuel your runs and recovery, tested and recommended by our expert panel
We spent months testing the best energy gels, drinks and chews — 17 products we'd genuinely recommend
Fuel your spring races and training with our pick of the tastiest and most effective running gels
Apple Watch Ultra 2 review: Battery anxiety be gone — for most runners
This long-lasting smartwatch might be the best Apple Watch for runners
The best winter running gear essentials to help you train in the cold
Survive anything the season throws at you with these cold weather essentials
Coros Pace Pro review: More than just a pretty face?
We put Coros' first AMOLED GPS watch to the test
Here’s how often you really need to replace your running shoes
With shoe technology ever evolving, the '300-500 mile' rule is no longer so straightforward
One of my favourite running shoes has dropped to under £85 in this Black Friday deal
Grab this editor-approved cushioned cruiser for a mega 40% off
The Argos Black Friday sale is excellent this year — 22 deals we recommend
Including the lowest price going on the Beats Powerbeats Pro
Unlock the best New Balance running trainer deals this Cyber Monday
The best running shoes deals from the New Balance Cyber Monday sale
'This is the jacket I zip up when winter hits – and it’s now 30% off'
Take £50 off the ultimate winter-proof jacket, ideal for uptempo runs
These Beats Black Friday deals are the best we've seen
We're taking savings of up to £130...
Black Friday sports nutrition deals: Save on SiS, High5, Protein Rebel and more
Fuel your runs with up to 62% off energy gels, bars and electrolytes as Black Friday approaches
Coros Apex 2 review: A compact adventure watch, built for endurance
But two years on from its release, is it still good value?
I tested the Garmin Forerunner 55 for six months — here's why it's still a great option for beginners
The Forerunner 55 might be an oldie, but it's a wallet-friendly goodie
The best Coros watches in 2025, tested over thousands of miles
If you're after long lasting battery life and impressive run tracking capabilities, Coros is the brand for you
Apple Watch Series 10 review: Slimmer, bigger and faster charging
Is the Apple Watch Series 10 a serious Garmin alternative?
Garmin Enduro 3 review: A cheaper Fenix 8 alternative?
Packing more staying power, a lighter design and a rare price drop — can the Enduro 3 rival the Garmin Fenix 8?
Garmin Fenix 8 review: The smartest Garmin yet
Garmin's flagship multi-sports watch is brighter and smarter than ever before — but it'll cost you
Flowbio S1: Tried and tested
Is this wearable your ticket to good hydration? We tested this hydration sensor in a marathon