The iPhone 8 Plus measures 5.65 inches tall (143.5 mm), 2.82 inches wide (71.5 mm), and 0.29 inch thick (7.3 mm), with a display that appears larger due to minimal bezels. Weighing 202 grams (7.1 ounces), it is noticeably larger and heavier than the iPhone 8, yet notably slimmer and more compact than many recent iPhones. These dimensions affect pocket fit, one-hand use, case compatibility, and placement of cameras and ports. Below, we break down the exact measurements, compare them to related models, and outline practical considerations for everyday use.
Exact Dimensions in Inches and Metric
Height, Width, and Thickness
The iPhone 8 Plus chassis dimensions are 5.65 inches (143.5 mm) in height, 2.82 inches (71.5 mm) in width, and 0.29 inch (7.3 mm) in thickness. The device weighs 202 grams (7.1 ounces). These figures come from Apple’s published specifications for the iPhone 8 Plus and reflect the physical enclosure around the internal components and battery.
Display Size and Viewable Area
Apple classifies the iPhone 8 Plus as having a 5.5-inch display, measured diagonally across the corners. The visible area is slightly less than the full chassis due to bezels, so the display panel itself occupies somewhat less than the full 5.65-by-2.82-inch footprint. The minimal bezels make the screen seem larger relative to the body compared to older iPhones, even though the display is not significantly bigger than the iPhone 8’s 4.7-inch screen in terms of diagonal inches.
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Height | 5.65 inches / 143.5 mm | Apple specifications |
| Width | 2.82 inches / 71.5 mm | Apple specifications |
| Thickness | 0.29 inch / 7.3 mm | Apple specifications |
| Weight | 202 grams / 7.1 ounces | Apple specifications |
| Display Size | 5.5 inches (diagonal) | Apple specifications |
Context: Chassis vs Display
It is useful to separate chassis dimensions from display size when discussing the physical scale of the iPhone 8 Plus. The 5.5-inch label refers to the diagonal visible area of the OLED-like LCD, not the outer glass outline. Because of slim bezels, the viewable surface occupies most of the front face, but the precise edges are slightly smaller. Users often conflate these two measures, so clarifying the distinction helps when comparing devices or fitting accessories like screen protectors and tempered glass.
Size Compared to Other iPhone Models
iPhone 8, iPhone 8 Plus, iPhone X
Compared with the iPhone 8, the iPhone 8 Plus is taller by about 0.78 inch (20 mm) and wider by 0.37 inch (9.5 mm), while thickness and weight are nearly identical. Against the iPhone X, the iPhone 8 Plus has a slightly larger display (5.5 versus 5.8 inches on iPhone X) but a comparable chassis height; the iPhone X is notably slimmer bezel-wise and features a different aspect ratio that changes one-hand reach and fit. These differences influence pocket comfort, grip, and whether users prefer a smaller, more compact device or a larger screen with minimal size increase.
Practical Considerations for Daily Use
Pocket Fit and Portability
The 5.65-inch height makes the iPhone 8 Plus borderline for one-handed use on many trousers and medium-sized pockets. Thickness and weight are modest by modern standards, so it slips into most pockets without excessive bulge. However, users with narrower pockets or who prioritize ultraportability may find newer, smaller iPhones or larger devices with more aggressive curves more convenient.
Case and Accessory Compatibility
Because dimensions are stable and well-documented, third-party cases that specify iPhone 8 Plus are generally consistent. Screen protectors are widely available, though edge curvature is less pronounced than on later iPhone models, meaning some film types may not cover the display fully. Knowing exact measurements ensures cases align with camera cutouts, buttons, and ports.
Camera and Button Placement
The height and width dictate the layout of cameras, flash, and sensors. On the iPhone 8 Plus, the dual-lens camera module sits near the top edge with limited overhang, and the home button is centrally placed below the display. These placements affect how protective accessories are designed and how easily users can reach controls while holding the phone normally.
Frequently Asked Questions
- Is the iPhone 8 Plus bigger than the original iPhone 8? Yes, it is taller and wider, but thickness and weight remain similar.
- Does the 5.5-inch label refer to the outer glass size? No, it refers to the diagonal visible display area; the chassis is slightly larger.
- How does the iPhone 8 Plus compare to modern iPhones in terms of size? It is shorter and narrower than most flagships released after 2018, which tend to be taller and slimmer with larger displays.
- Will a standard iPhone case fit the iPhone 8 Plus? Only cases explicitly labeled for the iPhone 8 Plus will match the exact dimensions; using a case designed for other models can result in misalignment.
- Does the physical size affect one-handed use? The height makes one-handed use challenging for some users, which is why many prefer smaller models or use accessibility features like reachability.
Why Precise Measurements Matter
Accurate dimensions matter for procurement, repairs, accessory selection, and setting expectations about device scale. A precise, verified specification list prevents mismatched parts, reduces return rates, and helps users understand how the device fits into daily routines. By anchoring decisions in Apple’s official data rather than estimates, you ensure long-term relevance and compatibility planning.
Evergreen Takeaways
- The iPhone 8 Plus is 5.65 inches tall, 2.82 inches wide, and 0.29 inch thick, weighing 202 grams.
- It has a 5.5-inch display, with minimal bezels that maximize viewable area without increasing chassis dimensions significantly.
- Compared with the iPhone 8 it is notably taller and wider; compared with newer iPhones it is less tall but often thicker in hand feel due to design differences.
- Knowing these measurements supports better decisions for cases, screen protectors, and one-handed use.
- These specifications remain accurate over time, making them reliable for long-term planning and comparisons.