# Does your iPhone count steps in a bag?

> Yes. An iPhone in a shoulder bag, handbag or backpack counts your steps about as accurately as one in your trouser pocket: in a 2018 study, iPhones in all three places were within 3% of a video count. It misses steps when the bag isn't moving with you, such as hanging on a pushchair or sitting in a trolley.

- URL: https://www.getstepup.app/guides/does-iphone-count-steps-in-bag
- Author: Dheeraj Kumar Sharma, founder of StepUp
- Published: 2026-10-22
- Updated: 2026-10-22

![A walker on a mountain with an iPhone in their bagpack, with the text: phone in your bag ? Still counting.](https://pub-48d2217e0886430fa61a96fad22cffa7.r2.dev/Guides/still-counting.webp)
*image credit: Unsplash*

You're out for the day with your phone in a handbag or a backpack, and you wonder whether those steps count. They do. An iPhone doesn't need to be in your pocket to count steps: it needs to be moving with you. A bag on your shoulder or your back does that, so it counts almost every step a pocket would.

Where it goes wrong is when the bag stops moving with your body: hooked on a pushchair, in a trolley or on the seat beside you. This guide goes through each place you might carry your phone, what the research found, and how to check your own.

## Does iPhone count steps in a bag?

Yes, and about as accurately as in a pocket. The best evidence comes from a 2018 study at the University of Basel. Twenty adults, aged 18 to 70, walked on a treadmill at four speeds and around an outdoor course, each carrying three iPhones: one in a trouser pocket, one in a shoulder bag and one in a backpack. Video of their feet gave the true count.

At a normal pace, and even at a slow 3.2 km/h (2 mph), all three iPhones were within 3% of the video on average. Where the phone was made no difference. The authors' conclusion was simple: the phone's position doesn't affect how well it detects steps.

Only at a very slow shuffle, 1.6 km/h (1 mph), did the counts fall away, and every device in the study struggled there, not only the phones in bags.

## How does a phone in a bag count steps?

The same way it does in your pocket. The iPhone's motion chip watches for the small, regular jolt your body makes each time a foot lands, and counts each beat as a step. That jolt runs up through your whole body, so a bag on your shoulder or your back feels it too: a little softer than a pocket against your hip, but just as regular.

The chip also ignores movement that doesn't fit the rhythm. A phone sliding around the bottom of a handbag, or a bag knocked against a door, doesn't add steps, because the bumps don't come at a walking beat.

## Which is better: a pocket, a bag or your hand?

For counting steps, any of them, as long as the phone travels with you. Here's how each place does.

| Where your iPhone is | Steps counted? | Why |
|---|---|---|
| Trouser pocket | **Yes** | Close to your hips, where each step is clearest |
| Jacket pocket | **Yes** | It moves with your body |
| Shoulder bag or handbag | **Yes** | Within a few percent of a pocket in the 2018 study |
| Backpack | **Yes** | The same |
| In your hand | **Usually** | Your hand moves with each step, unless you stop to use the phone |
| On a pushchair or trolley handle | **Mostly not** | It glides along instead of bouncing |
| In a bag hung on a pushchair | **Mostly not** | The bag moves with the pushchair, not with you |
| In a bag in a trolley, a basket or the car | **No** | It isn't moving with you at all |
| On a desk, a counter or the charger | **No** | It's still |

## Does iPhone count steps in your hand?

Usually, yes. Whether it's swinging at your side or you're holding it up to read, your hand rises and falls a little with each step, and the phone picks up that rhythm.

Hands have been studied less than pockets and bags, though, and they're the least steady of the three. A hand that stops to scroll, points the phone at a map or holds it still for a photo stops sending a rhythm for a few seconds. So on a walk where you use the phone a lot, the count can come out a little low. For a long walk, a pocket or a bag is the safer place.

## What about pushing a pushchair or a trolley?

This is where most missed steps come from, and the fix is easy. Clipped to the handle, sitting in the cup holder or in a bag hung on the pushchair, your phone rides along on wheels. It moves forward smoothly instead of bouncing with each step, so it has little to count.

Put the phone in your pocket, or carry the bag on your shoulder, and it counts normally. Your legs do the same walking whether your hands are on a handle or not.

It's the opposite of an Apple Watch. A Watch counts from the swing of your arm, so pushing a pushchair or a trolley, with your wrists still on the handle, it can miss a lot of steps. A phone in your pocket doesn't mind where your hands are.

## When does a bag miss steps?

Mostly when it stops moving with you:

- **When it's put down.** A bag under your desk, on a café chair or on the back seat of the car counts nothing while you walk around without it.
- **When it hangs on something with wheels.** A pushchair, a shopping trolley or a wheeled suitcase.
- **When you walk very slowly.** Browsing in a shop or shuffling along in a queue, below about 1.6 km/h (1 mph). Every device in the 2018 study, pocket or bag, found these the hardest steps to count.

The other way round, a bag rarely adds steps you didn't take. A bumpy bus or train ride can add a handful, with the phone on your lap or in your pocket alike, but not hundreds.

## Does a bag change anything besides steps?

Yes: the measurements of how you walk. On iPhone 8 and later, Health records Walking Speed, Walking Step Length, Double Support Time and Walking Asymmetry, and turns them into Walking Steadiness. Apple takes these only while the phone is in a pocket or a holster near your waist, because that's where it can follow your hips.

So a phone that lives in a bag counts your steps, distance and flights climbed as normal, but it records fewer of those walking measurements, or none. If you want them, a front trouser pocket for part of the day keeps them coming. [Walking metrics, explained](https://www.getstepup.app/guides/walking-metrics-explained) covers what each one means, and StepUp's [Pace](https://www.getstepup.app/metrics/pace) and [Evenness](https://www.getstepup.app/metrics/evenness) are built from them.

## How do you check your own phone?

Count 100 steps. It takes two minutes:

1. Open **Health › Browse › Activity › Steps** and note today's total.
2. Put the phone where you usually carry it and walk 100 steps at your normal pace, counting in your head.
3. Wait a minute, then check Health again. The total should have gone up by about 100: anywhere from 95 to 105 is as good as any step counter gets.

Try it with the phone in your bag, in your pocket and in your hand. If one place comes out well short, that's the one to avoid on days you want every step.

## Does it matter if your phone misses a few steps?

Less than you'd think. What tells you something is how your average moves from week to week. If your phone spends most days in the same bag, it misses about the same share of steps every week, and that cancels out of the comparison. A goal set from your own average already allows for it: [How many steps should I walk a day?](https://www.getstepup.app/guides/how-many-steps-a-day) explains how to pick one.

The steps worth catching are the ones you take without the phone at all. [Step tracking without an Apple Watch](https://www.getstepup.app/guides/step-tracking-without-apple-watch) goes through where those go missing, and [Counting steps on iPhone](https://www.getstepup.app/guides/iphone-step-count) explains how the count works in more detail.

## Does StepUp count steps when your phone is in a bag?

Yes, because StepUp doesn't count steps itself: it reads them from Apple Health. Wherever you carry your iPhone, the number in StepUp is the number in Health, and a phone in your bag gives StepUp everything it needs for your goal, your streak and your widgets. Only Pace and Evenness, which read the walking measurements, need the phone in a pocket some of the time.

## The short version

- An iPhone counts steps in a shoulder bag, a handbag or a backpack about as well as in a pocket: within 3% in a 2018 study.
- In your hand it usually counts, but less steadily when you stop to use the phone.
- It misses steps when the bag isn't moving with you: on a pushchair, in a trolley or put down.
- Pushing a pushchair or a trolley, keep the phone in your pocket, not on the handle.
- Walking Speed, Walking Steadiness and the other walking measurements need the phone in a pocket near your waist.
- To check your own phone, walk 100 counted steps and compare.

## Questions

### Does iPhone count steps in a backpack?

Yes. In a 2018 study, an iPhone in a backpack counted steps within 3% of a video count at normal walking speeds, as accurately as one in a trouser pocket or a shoulder bag.

### Does iPhone count steps if I'm holding it?

Usually. Your hand moves with each step, so the phone picks up the rhythm. It counts less steadily when you stop to scroll or hold it still, so a pocket or a bag is the safer place on a long walk.

### Does iPhone count steps when pushing a pushchair?

Yes, if it's in your pocket or a bag on your shoulder. Clipped to the handle, or in a bag hanging from it, the phone glides along with the pushchair and misses most of your steps.

### Why didn't my iPhone count my steps on a walk?

Usually because it wasn't moving with you: left behind, put down, or riding on a pushchair or trolley. If it counts nothing at all, check that Fitness Tracking is on under Settings › Privacy & Security › Motion & Fitness.

### Can I add steps my iPhone missed?

Yes. In Health, open Browse › Activity › Steps and tap Add Data. Steps you add by hand are kept as their own source, so you can always tell them apart from the ones your iPhone counted.

## Sources

- [Höchsmann et al. (2018), Validity of activity trackers, smartphones, and phone applications to measure steps in various walking conditions, Scandinavian Journal of Medicine & Science in Sports](https://pubmed.ncbi.nlm.nih.gov/29460319/)
- [Case et al. (2015), Accuracy of smartphone applications and wearable devices for tracking physical activity data, JAMA](https://jamanetwork.com/journals/jama/fullarticle/2108876)
- [Apple Support, Measure your walking steadiness with your iPhone](https://support.apple.com/en-us/102504)
- [Apple (2022), Measuring walking quality through iPhone mobility metrics](https://www.apple.com/healthcare/docs/site/Measuring_Walking_Quality_Through_iPhone_Mobility_Metrics.pdf)
- [Apple Support, Manage Health data on your iPhone, iPad, or Apple Watch](https://support.apple.com/en-us/108779)