Difference Between Galaxy S8 and S8+: Size, Battery, and Which to Choose

Galaxy S8 vs S8+: The Core Trade-Off

The difference between Galaxy S8 and S8+ comes down to size, endurance, and price. Both phones share the same stunning edge-to-edge Infinity Display design, the same Snapdragon 835 or Exynos 8895 processor depending on region, and the same 12-megapixel rear camera with dual pixel autofocus. Samsung positioned the S8 as the compact premium option and the S8+ as the larger, all-day battery alternative. Choosing between them is really about whether you prioritize one-handed usability or extended runtime.

Display and Design Comparison

Screen Size and Resolution

The Galaxy S8 has a 5.8-inch Quad HD+ Super AMOLED display, while the Galaxy S8+ steps up to a 6.2-inch Quad HD+ panel. Both use the same 18.5:9 aspect ratio and pixel density of 570 ppi, so text and images look equally sharp on each device. The larger screen on the S8+ makes a noticeable difference when streaming video or reading documents, but it also makes the phone significantly harder to use with one hand.

Body and Ergonomics

Samsung kept the design language identical between the two: glass front and back, aluminum frame, and the signature slim bezels. The S8 measures 148.9 x 68.1 x 8.0 mm and weighs 155 grams, whereas the S8+ measures 159.5 x 73.4 x 8.0 mm and weighs 173 grams. That extra centimeter in height and width translates into a phone that feels substantial in the hand. If you regularly use your phone with one hand or prefer a tighter fit in a pocket, the S8 is the more comfortable choice.

Battery Life and Charging

The battery difference between Galaxy S8 and S8+ is the most practical distinction for most buyers. The S8 carries a 3,000 mAh battery, while the S8+ packs a 3,500 mAh cell. In real-world usage, the S8+ typically delivers a full day and a half of moderate use, whereas the S8 often requires a top-up by late afternoon if you are a heavy user. Both phones support fast charging and wireless charging, and Samsung included a USB-C connector with reversible orientation for convenience.

Camera, Performance, and Software

Samsung gave both devices the same camera hardware and the same performance internals. The 12-megapixel rear sensor with f/1.7 aperture and dual pixel autofocus produces consistent results in daylight and low light on both the S8 and S8+. The front-facing 8-megapixel camera with f/1.7 aperture handles selfies and video calls equally well on either phone. Because the processor and RAM are identical, app launching, multitasking, and gaming performance are the same regardless of which model you choose.

Software-wise, both launched with Android Nougat under Samsung's Experience UI and received updates to Android Oreo and, in some markets, Android Pie. Samsung's Bixby assistant was introduced alongside both phones, though the dedicated Bixby button on the left side of the device remained a point of contention because its functionality was limited at launch.

Price and Value Consideration

At launch, the Galaxy S8+ carried a higher price tag than the Galaxy S8, typically a premium of around 10 to 15 percent depending on the market and storage configuration. That price gap narrowed over time as both phones aged, but the S8+ has generally retained a slightly higher resale value because of its larger battery and bigger display, which remain attractive to buyers who prioritize those traits. If your budget is tight and you value portability, the S8 delivers the same core experience in a smaller package. If you want fewer charges per day and a larger viewing area, the S8+ justifies its higher cost.

Which One Should You Pick

The difference between Galaxy S8 and S8+ narrows considerably once you look past the screen and the battery. Both are excellent phones that age well, receive the same software support, and share identical camera and performance capabilities. The decision reduces to a simple preference: do you want a phone that fits comfortably in a small hand and lasts a workday, or do you prefer a larger canvas and the confidence of a battery that can stretch into a second day? If you lean toward the latter and the price difference is modest, the S8+ is the more balanced choice. If you prioritize compactness and one-handed grip, the S8 remains a compelling flagship that holds up well even by today's standards.