iPhone SE size dimensions range from 123.8 × 58.6 × 7.6 mm to 138.4 × 67.3 × 7.3 mm, depending on the generation.
Why iPhone SE Size Dimensions Matter
The iPhone SE family shares a name but not the same body. The first model from 2016 has a compact 4-inch display and a smaller footprint, while the 2020 and 2022 models sit in the same shell as the iPhone 8 with a 4.7-inch screen. That size difference changes how the phone feels in one hand, how it slides into a pocket, and which accessories actually fit.
For anyone buying an iPhone SE today, size dimensions affect daily comfort, reachability, and grip. A few millimetres in width can decide whether you can stretch your thumb across the keyboard. Height and thickness influence how stable the phone feels during long reading sessions or gaming. Weight also affects fatigue when you hold the phone above your face in bed or mount it on a bike, gimbal, or car vent holder.
Size also matters when you buy cases, screen protectors, bike mounts, and wireless charging stands. A case built for the 2016 SE will not line up with the camera or ports on the 2020 and 2022 phones, even though the names match. Knowing the exact iPhone SE size dimensions saves returns, wasted money, and misaligned cut-outs.
iPhone SE Size Dimensions For Every Generation
The easiest way to think about iPhone SE dimensions is by generation. There are three main bodies that share the SE name: the original 2016 model, the 2nd generation from 2020, and the 3rd generation from 2022. The 2020 and 2022 versions share the same external shell, so cases and many accessories cross-fit between them.
iPhone SE (2016) Physical Size And Weight
The first iPhone SE uses the same exterior as the iPhone 5s. Apple’s iPhone SE technical specifications page lists its size as 123.8 mm tall, 58.6 mm wide, and 7.6 mm thick, with a weight of 113 g and a 4.0-inch display measured diagonally.1 That combination feels small by modern standards but still works well for people who want a one-handed device that disappears in a pocket.
iPhone SE (2020) Physical Size And Weight
The 2nd generation iPhone SE moves to a larger 4.7-inch Retina HD display and a taller frame. Apple lists its dimensions as 138.4 mm in height, 67.3 mm in width, and 7.3 mm in depth, with a weight of 148 g.2 In practice, that brings it in line with older 4.7-inch iPhones such as the iPhone 6, 7, and 8, so many accessories sized for those models also work with the 2020 SE.
iPhone SE (2022) Physical Size And Weight
The 3rd generation iPhone SE keeps the same outer shell as the 2020 model while upgrading the internals. Apple’s iPhone SE (3rd generation) tech specs page gives the same measurements: 138.4 mm tall, 67.3 mm wide, and 7.3 mm thick, with a weight of 144 g and the same 4.7-inch display size.3 That means almost every case or screen protector that fits the 2020 SE will also fit the 2022 SE.
Quick Comparison Table
This table brings the iPhone SE size dimensions together so you can match a phone to a case or see how much larger one model feels than another.
| iPhone SE Model | Body Size (H × W × D) | Weight |
|---|---|---|
| iPhone SE (2016) | 123.8 × 58.6 × 7.6 mm | 113 g |
| iPhone SE (2020) | 138.4 × 67.3 × 7.3 mm | 148 g |
| iPhone SE (2022) | 138.4 × 67.3 × 7.3 mm | 144 g |
Screen Size Versus Body Size On iPhone SE
Screen size numbers can feel confusing, since Apple markets the iPhone SE line as either “4-inch” or “4.7-inch” even though the outer shell varies. The display diagonal only tells you part of the story. Bezels, aspect ratio, and body thickness all shape how large the phone feels in your hand and pocket.
The 2016 iPhone SE pairs its 4-inch screen with a more compact body and flat sides that give a blocky, secure grip. The 2020 and 2022 models place a 4.7-inch display in a taller, rounded shell that fills more of your palm but still feels smaller than current 6-inch-plus flagships. That middle ground suits people who find big phones unwieldy but want more on-screen content than the original SE offers.
When you compare iPhone SE size dimensions against modern iPhones, the 2016 model feels closer to a remote, while the 4.7-inch SE generations feel like slim, light companions. That contrast matters for thumb reach, typing comfort, and how often you stretch your hand or shift your grip during long sessions.
iPhone SE Size Dimensions Versus Other iPhones
Many buyers weigh an iPhone SE against larger models with Face ID and edge-to-edge displays. Apple’s current mainline phones tend to sit between 6.1 and 6.7 inches in screen size with wider and taller bodies, so any iPhone SE will feel more compact in every pocket.
The 2016 SE is roughly a centimetre shorter and almost a centimetre narrower than many modern iPhones. That makes it the easiest to slip into skinny jeans, inner jacket pockets, running belts, and small handbags. The trade-off comes in video and reading space, since the 4-inch panel shows less text and smaller buttons.
The 2020 and 2022 SE models sit in the middle of the range. They are shorter and narrower than many 6-inch phones yet large enough to feel comfortable for streaming, light gaming, and typing with both thumbs. Many people treat them as a bridge between classic, compact iPhones and the taller, heavier devices that now dominate the line-up.
Choosing The Right iPhone SE Case Size
Because the iPhone SE line shares a name but not dimensions, case selection can trip people up. A well-fitted case protects the glass, saves the camera bump from scratches, and keeps buttons easy to press. A case sized for the wrong generation leaves gaps, hides the flash, or blocks microphones.
- Check The Exact Model Name In Settings — Open Settings > General > About and read the entry beside Model Name. It will show “iPhone SE (1st generation)”, “iPhone SE (2nd generation)”, or “iPhone SE (3rd generation)”.
- Match The Case Label To Your Generation — Packaging often says “iPhone SE (2020/2022) / iPhone 8 / iPhone 7” for 4.7-inch bodies, or “iPhone 5/5s/SE” for the 2016 shell. Use that wording to match your phone to the right accessory.
- Check Camera And Port Cut-Outs — Before you peel off stickers or throw away packaging, slide the phone into the case and check the camera lens, flash, speaker grilles, and Lightning port. They should all sit neatly inside their openings.
- Allow A Little Clearance For Screen Protectors — Some rugged cases wrap over the edge of the glass. If you also plan to run a tempered glass protector, pick a case with slightly looser lips so the two layers do not lift each other.
Many case makers now mark the 2020 and 2022 SE together, since the iPhone SE size dimensions match exactly on the outside. That simplifies shopping, but it still pays to double-check the year on the listing so you avoid cases sized only for older 4-inch bodies.
How iPhone SE Dimensions Affect Daily Use
Dimensions are more than numbers on a spec sheet. They shape how you reach the corners of the display, where the phone sits in a pocket, and how secure it feels when you hold it over a hard floor. Each iPhone SE generation lands in a slightly different sweet spot.
One-Handed Use And Thumb Reach
The 2016 iPhone SE is one of the few phones that many adults can span corner to corner with a thumb. This helps with quick replies, swiping through notifications, and hitting buttons along the top edge without shifting your grip. People with smaller hands often gravitate to this model for that reason alone.
The 4.7-inch SE generations stretch that reach a little. Most users can still manage one-handed scrolling, but tapping icons at the top of the screen may require a quick shuffle or the use of Reachability. In return you get more on-screen content, larger photos, and a bigger keyboard layout.
Pocket Fit And Carry Comfort
Pocket comfort depends on height, width, and thickness together. The 2016 SE barely prints through thin fabrics and tends to sit low enough that the top edge does not poke against your hip bone when you sit. This matters on long commutes or when you clip the phone inside a running waistband.
The 2020 and 2022 models extend a little higher. They may nudge the edge of shallow pockets, but most standard jeans and chinos still handle the size without drama. Many users find this a fair trade for the larger screen, especially once they add a case that spreads the weight across a broader area.
Typing, Gaming, And Media
Text entry feels different across the iPhone SE line. On the 2016 model, some people rely on predictive text more because the keys sit closer together. On the 4.7-inch models, the keyboard spreads out just enough to allow more confident thumb typing while still leaving the device small enough for one-handed use in portrait mode.
Game controls and video playback also benefit from body size. The slightly taller SE generations give games more vertical room for on-screen buttons without blocking the action. Movies and short clips feel less cramped, especially on streaming services that expect wider displays.
How To Measure Your iPhone SE At Home
If you are unsure which iPhone SE you own or want to double-check accessory fit, you can measure your device with simple tools. Precise measurements help when you shop from smaller brands or custom case makers that ask for exact dimensions.
- Use A Rigid Ruler Or Caliper — Lay the phone face up on a flat surface and line up a millimetre ruler or digital caliper with the top and bottom edges to read the height, then repeat along the sides for width and across the edge for thickness.
- Measure Without The Case First — Take off any case or bumper before you measure. Cases add thickness and a little width, which can mislead you if you compare your readings to official iPhone SE size dimensions.
- Compare Against Official Numbers — Once you have your measurements, compare them to Apple’s published size and weight figures for your model to confirm a match.
- Note The Screen Diagonal — If you want to check screen protectors, measure from one display corner to the opposite corner without including the bezels. The 2016 SE will land near 4.0 inches, while the later models sit near 4.7 inches.
For reference, Apple’s iPhone SE (2nd generation) technical specifications page summarises official dimensions and weights, which you can use as a cross-check when something you measure looks off.
Which iPhone SE Size Works Best For You
Choosing between the different iPhone SE size dimensions mainly comes down to how you use your phone and how small your hands are. If you want a tiny device that hides in any pocket, the 2016 SE body still wins, though you will now find it only on the used market and with limited software updates from Apple. That trade-off buys comfort, light weight, and easier reach.
If you want a more modern processor, longer update window, and compatibility with newer networks in a body that still feels compact, the 2020 and 2022 SE generations strike a neat balance. They carry a 4.7-inch display, share the same external shell, and remain slimmer and lighter than many current 6-inch iPhones while offering better app updates than the original model.
When you match iPhone SE size dimensions to your pocket, bag, and grip style, the numbers on the spec sheet turn into a daily comfort decision. Once you know which body suits your hands and pockets, you can choose storage, colour, and pricing, confident that the phone itself will feel right every time you pick it up.