The Apple iPhone 7 measures exactly 138.3 millimeters high, 67.1 millimeters wide, and 7.1 millimeters thick. Weighing in at 138 grams, this 4.7-inch device marked a major refinement in smartphone ergonomics during the era of mid-2010s mobile engineering. If you're comparing physical footprints, finding matching cases, or studying how smartphone form factors evolved away from physical headphone jacks, exact millimetric numbers matter.
Exact Physical Dimensions and Weight Breakdown
Apple maintained the same general chassis footprint introduced with the iPhone 6, but optimized internal layouts and external finishes.
- Height: 5.44 inches or 138.3 mm
- Width: 2.64 inches or 67.1 mm
- Depth (Thickness): 0.28 inches or 7.1 mm
- Weight: 4.87 ounces or 138 grams
Compared to its predecessor, the iPhone 6s, the physical dimensions remained identical down to the fraction of a millimeter. However, the weight dropped by a marginal 5 grams, shifting from 143 grams down to 138 grams. That minor reduction came from internal redesigns, most notably the elimination of the traditional 3.5mm analog headphone jack and the structural shift toward a solid-state, pressure-sensitive Home button powered by the Taptic Engine.
Display Specifications and Form Factor Scale
The front face is dominated by a 4.7-inch Retina HD widescreen LCD panel.
- Screen Size: 4.7 inches diagonally
- Resolution: 1334 by 750 pixels
- Pixel Density: 326 pixels per inch (ppi)
- Physical Screen Area: Roughly 60.9 square centimeters, yielding an approximate 65.6 percent screen-to-body ratio due to the prominent top and bottom bezels characteristic of the era.
The display featured a wide color gamut (P3) and a typical maximum brightness of 625 cd/m2, making text and media legible outdoors despite the compact physical canvas.
Materials and Exterior Design Changes
The unibody enclosure was crafted from 7000-series aluminum, balancing structural rigidity with low mass. Apple introduced two new finishes with this generation: a matte black finish and a high-gloss "Jet Black" option.
The Jet Black variant required a complex nine-step anodization and polishing process to achieve its mirror-like shine. Because of this unique finishing process, Apple officially noted that the surface hardness was identical to other anodized models, but the polished exterior was more prone to microscopic abrasions over time. Many users opted for slim protective skins or transparent polymer cases to preserve the finish.
Another physical milestone for this chassis was the inclusion of IP67 water and dust resistance under IEC standard 60529. The phone could survive up to 30 minutes submerged in one meter of fresh water. Achieving this required tighter internal gasketing and the removal of physical passages through the housing, cementing the shift away from mechanical ports.
Common Practical Challenges with iPhone 7 Sizing
Handling a device with a 2.64-inch width feels vastly different compared to modern smartphones that routinely exceed 75 millimeters in width.
- One-handed reach: Most users with average hand sizes can comfortably reach across the entire keyboard and tap the top corners without shifting their grip.
- Pocket compatibility: At only 7.1 mm thick, the device slips easily into tight pockets or small structured bags without creating a heavy bulge.
- Case compatibility: Because the camera bump on the standard iPhone 7 is isolated and modest compared to multi-lens modern setups, standard bumper cases sit flush without rocking on flat surfaces.
Frequently Asked Questions
Does an iPhone 6 or 6s case fit an iPhone 7?
Most standard snap-on cases fit, but cases with precise cutouts around the bottom ports will not align properly. The physical dimensions match, but the iPhone 7 lacks a headphone jack and features a redesigned speaker grille layout on the bottom edge.
What is the screen-to-body ratio of the iPhone 7?
The screen-to-body ratio sits at approximately 65.6 percent. The generous top and bottom bezels house the FaceTime camera, earpiece, and the solid-state Touch ID sensor.
How does the size compare to the iPhone 7 Plus?
The iPhone 7 Plus is significantly larger, measuring 158.2 mm high, 77.9 mm wide, 7.3 mm thick, and weighing 188 grams. It houses a larger 5.5-inch display and dual rear cameras.
Is the iPhone 7 considered a small phone by current standards?
Yes. With a width under 68 mm and a height well under 140 mm, it is classified as a compact device compared to modern flagships, which frequently feature displays over 6.1 inches.
To read full official manufacturer documentation regarding hardware safety and compliance, check the Apple Support Technical Specifications. For historical hardware benchmarks and architectural timelines, view the GSMArena iPhone 7 Specifications and the Wikipedia iPhone 7 Entry.
