iPhone 6 length: the exact number and why it matters
The iPhone 6 length is 138.1 millimeters, or 5.44 inches, measured diagonally across the chassis bezel to bezel. This makes it notably taller than the iPhone 5, 5s, and 5c, which measure 123.8 millimeters, and distinctly larger than the compact iPhone 6 Plus length at 158.1 millimeters. The increase in height, paired with a width of 67.0 millimeters and a slim profile, helped define a new class of “phablet” style for mainstream smartphones. Because Apple continued to use similar outer dimensions in subsequent models, the iPhone 6 length effectively establishes the reference point for understanding size changes across the iPhone 6, 6s, 6c, 7, 8, and SE2/3 designs.
Key dimensions of the iPhone 6
Beyond length, a full picture of the iPhone 6 size comes from height, width, depth, and display measurements. The display is 6.91 cm (2.72 inches) diagonally, and the chassis adds minimal bezels compared to earlier generations. Understanding these values helps contextualize everything from case fit to pocketability to comparative design trends across Apple’s iPhone lineup.
Physical specifications at a glance
| Attribute | iPhone 6 value | Source type |
|---|---|---|
| Length (diagonal chassis) | 138.1 mm (5.44 in) | Apple spec sheet |
| Height (vertical) | 67.0 mm (2.64 in) | Apple spec sheet |
| Width (horizontal) | 6.70 mm (0.264 in) — incorrect if read as 67.0 mm width; correct width is 67.0 mm | Note: verify from official source |
| Depth (thickness) | 6.9 mm (0.27 in) | Apple spec sheet |
| Weight (Wi‑Fi) | 129 g (4.55 oz) | Apple spec sheet |
| Display size | 4.7 in (119.2 mm) diagonal viewable area | Apple spec sheet |
How the iPhone 6 length compares to earlier iPhones
Compared with the iPhone 5 and 5s, the iPhone 6 adds approximately 14.3 millimeters (0.56 inches) in length, a change that shifts one-handed use and pocket fit. The iPhone 6 Plus, by contrast, is significantly longer at 158.1 millimeters, underscoring Apple’s early phablet strategy. The iPhone 6 length therefore represents a transitional size: larger than the pre‑6 generations, but more compact than the Plus variants that followed.
Quick size comparison
- iPhone 5/5c/5s length: 123.8 mm (4.87 in)
- iPhone 6 length: 138.1 mm (5.44 in)
- iPhone 6 Plus length: 158.1 mm (6.22 in)
- iPhone 6s/6s Plus length: same outer chassis as iPhone 6/6 Plus
- iPhone 7/8 length: 138.3 mm (5.44 in), nearly identical to iPhone 6
Why iPhone 6 length matters for buyers and cases
The 138.1 mm chassis length influences ergonomics, case compatibility, and screen-to-body proportions. Because many third‑party cases reference the iPhone 6 length directly, choosing a case meant for earlier or later models can result in poor fit. For users who prioritize one-handed use, the size sits at the upper edge of comfortable handling; for others, it justifies exploring Plus models or smaller alternatives like the SE line. Understanding the true length helps avoid returns and ensures a proper fit for accessories like screen protectors and wallets.
How iPhone 6 length fits into Apple’s size evolution
Apple’s shift with the iPhone 6 length set a precedent for larger displays without drastically increasing one-hand usability. Subsequent generations retained similar external heights, with tweaks to width, cameras, and internals rather than major dimensional overhauls. This continuity means the iPhone 6 length remains a reliable reference when comparing device generations, even as display sizes grow and newer models introduce varied form factors like notches and taller aspect ratios.
Frequently asked questions about iPhone 6 length
- Is the iPhone 6 length the same as the iPhone 6s? Yes, the chassis length is identical at 138.1 mm, though small design changes exist around cameras and buttons.
- How does the iPhone 6 length compare to the iPhone 8? The iPhone 8 length is effectively the same at 138.3 mm, making cases often cross‑compatible with minor tolerance differences.
- Does the iPhone 6 length include the camera bump? Yes, overall device length includes the camera protrusion, as it is part of the chassis perimeter.
- Are iPhone 6 and iPhone 6 Plus interchangeable in terms of size? No; the Plus is notably longer and wider, so cases and screen protectors are not compatible.