Which Watch for NHS Couch to 5K, and Then for parkrun?

What Couch to 5K asks of a watch

The NHS plan is written in minutes, not kilometres. Its Better Health page describes nine weeks of three runs a week, from one-minute runs with 90-second walks in week one to 30 minutes without stopping at the end, with a trainer in your headphones. Nothing on that page mentions GPS, distance or a watch.

So a watch has three jobs: prompt the intervals on the wrist, so you are not fishing a phone out mid-run; measure distance, which matters by week nine, when the question is whether 30 minutes reaches five kilometres; and read heart rate, which the plan never uses but every watch here has.

The app itself runs on the phone: its App Store listing is marked as iPhone-only and names iPhone, iPod touch and Apple Vision, not Apple Watch, and the NHS page offers it on Google Play for Android. The phone coaches; the watch records.

Route one: a smartwatch, with the plan on the phone or in a third-party app

The simplest set-up is the NHS app on the phone in a pocket or armband, and an Outdoor Run started in the watch's Workout app to record distance, pace and heart rate. On an Apple Watch that works from day one.

To leave the phone at home, two third-party plans run on the watch: Watch to 5K (Spaceman Digital), a nine-week plan whose App Store listing says it runs independently of the iPhone and taps your wrist at each change, a one-off purchase; and None to Run (UniqueBits), a twelve-week plan building to 25 minutes of continuous running, phone-free, on a subscription after a free trial.

Or use no app at all: Apple's guide to the Workout app describes a Custom Workout with a warm-up, repeating work and recovery intervals set by time or distance, a cool-down and an Up Next view. Week one is a one-minute work interval and a 90-second recovery, repeated.

Route two: a running watch with the intervals built in

The most useful feature here for a Couch to 5K runner is a Garmin's Run/Walk alert: set a run time and a walk time, and each time an interval ends the watch shows a message and beeps or vibrates. Garmin's manuals describe it for the Forerunner 55 and Forerunner 165, and the vívoactive 6 manual lists the same alert as timed walk breaks at set intervals. It is set before you press start and stays on for every run until you turn it off.

All three also carry Garmin Coach, an adaptive plan in Garmin Connect set up by answering a few questions, with a plan for finishing a 5 km race as the manual's example; the day's workout appears on the watch. Coros and Polar sell similar watches; none is a pick here. Amazfit's UK page for the Bip 6 lists Zepp Coach plans including a 5K plan, and Fitbit's page for the Charge 6 lists an interval timer; neither is a Run/Walk alert you set in seconds.

What changes at parkrun

parkrun is a free, timed five-kilometre event every Saturday, at 9:00 in England and Wales and 9:30 in Scotland and Northern Ireland, and walking or walk-running is fine. At the finish you take a numbered token, and a volunteer scans your barcode and the token. Your official time comes from that, not your watch.

The barcode. The policy is "No barcode, no time, no exception". parkrun's support article says you can print the barcode or download it to an electronic device (digital barcodes have been accepted since November 2021 where a printed one cannot be shown), and a volunteer can write down one that will not scan. parkrun still asks everyone to carry a scannable barcode because it holds their emergency contact details.

On a Garmin the wrist version is a free Connect IQ widget called parkrun barcode: barcode, QR code, name and emergency contact. The listing says the QR code scans better, and it lists the Forerunner 55, Forerunner 165 and vívoactive 6 as compatible. A separate data field shows it without ending the run (Forerunner 165 and vívoactive 6, not the Forerunner 55). On an Apple Watch the route is a Wallet pass; Exmouth parkrun's notice board recommends a free web tool that puts the barcode in the iPhone's Wallet and the watch's.

Kilometre splits. Garmin's Auto Lap, set by distance, shows the lap time and buzzes at each kilometre, so you know whether a personal best is on; Apple's Workout app has a Split view among its Outdoor Run screens.

GPS under trees. Garmin's reception advice is an open area away from tall buildings and trees, a few minutes standing still, and a sync first so the watch holds several days of satellite data; Fitbit says to wait up to 30 seconds before tapping Play. Arrive early and start the watch searching before the briefing, not on the start line.

Battery. Garmin rates the Forerunner 55 at up to 14 days in smartwatch mode and 20 hours of GPS, the Forerunner 165 at up to 11 days and 19 hours, the vívoactive 6 at up to 11 days and 21 hours; Amazfit rates the Bip 6 at up to 14 days and 32 hours of GPS. Apple gives the Series 11 up to 24 hours and the SE 3 up to 18: nightly charging, so Saturday is fine if Friday night happened.

The phone question

An Apple Watch pairs only with an iPhone (Apple's specs call for an iPhone 11 or later), and Wear OS cuts the other way: Google's help page says the Pixel Watch does not support iPhones (none of our picks runs it). Garmin's watches pair with either, per Garmin's own blog, which notes only that replying to messages works on Android; Amazfit lists the Bip 6 for Android 7.0 or iOS 14.0 and above, Fitbit the Charge 6 for Android 11 or iOS 16.4 and newer. On Android the choice is the Garmins, the Amazfit or the Fitbit; on an iPhone it is any of the seven.

Which of our picks fits which runner

All seven have GPS, so nothing on the smartwatch page is ruled out; the caveat is the Charge 6, whose default Dynamic GPS setting uses the phone's GPS when the phone is with you and moving.

Garmin Forerunner 55: the Couch to 5K watch. The Run/Walk alert, Garmin Coach, a memory-in-pixel screen that is dim indoors but readable in full sun, a week or more between charges, and the lowest price of the Garmins here. One of the deepest owner records in the category, and the oldest model here.
Garmin Forerunner 165: the same idea with a modern screen. AMOLED, the same alert and Coach plans, training and recovery data for later, and both parkrun Connect IQ listings. Battery is shorter than the Forerunner 55's but still days.
Garmin vívoactive 6: for the runner who also wants a smartwatch. The same alert and Coach plans on an AMOLED all-rounder with Garmin's full health suite. It costs more than the Forerunners and its app library is thin next to Apple's.
Apple Watch SE 3 and Apple Watch Series 11: for iPhone owners. Both run the same apps, so Watch to 5K, None to Run and the Custom Workout route work identically; the Series 11 adds the advanced health sensors. The costs are the nightly charge and the iPhone lock-in; for Couch to 5K alone the SE 3 is enough.
Amazfit Bip 6: the budget option with a fortnight of battery. A large AMOLED screen, GPS with offline maps and Zepp Coach plans including a 5K plan, for less than anything else here; a more modest owner rating and less refined software.
Fitbit Charge 6: for someone who wants a band, not a watch. Built-in GPS, heart rate, up to seven days and the lightest thing here to sleep in. It records a Couch to 5K run with the NHS app on the phone, but it coaches nothing, and its included Google Health membership renews at a cost.

Does the NHS Couch to 5K app work on Apple Watch without the phone?

No. The App Store listing is marked as iPhone-only and does not list Apple Watch. Run with the phone, buy a plan that runs on the watch (Watch to 5K, None to Run), or build each week's intervals as a Custom Workout; only the first uses the NHS trainers.

Can I put my parkrun barcode on a Garmin?

Yes. Install the free parkrun barcode widget from the Connect IQ store, enter your parkrun ID in the Connect IQ app on your phone, and show the QR code at the scanning table; all three Garmins here are listed. Carry a printed copy or wristband too: it holds your emergency contact details and is what the scanners fall back to.

Do I need a running watch or will a smartwatch do?

A smartwatch will do if the phone comes with you, or if you pay for a plan that runs on the watch. A running watch is the better tool if you want the intervals prompted with nothing installed and a battery that reaches Saturday without thought, which is the Forerunner 55. Once parkrun is the habit the gap narrows: every watch here records a five-kilometre run.