iPhone 6s • Unlocked vs iPhone 7 Plus • Unlocked

The iPhone 6S, released in September 2015, and the iPhone 7 Plus, launched in September 2016, represent two consecutive generations of Apple's smartphone offerings. While both devices share the iOS operating system and a familiar design language, the iPhone 7 Plus introduced several key advancements, particularly in camera technology, display size, and environmental resistance, setting it apart from its predecessor.

When considering the longevity of these devices, several factors come into play, including their release timelines, software support, and physical durability.

• Release Timeline: The iPhone 6S was released in September 2015, followed by the iPhone 7 Plus in September 2016. This one-year difference means the iPhone 7 Plus inherently offers a slightly newer hardware foundation.
• Software Longevity: Both the iPhone 6S and iPhone 7 Plus received software updates up to iOS 15. As of March 2026, neither device receives the latest iOS versions, meaning their software support has concluded. This impacts access to new features and security updates.
• Durability Features: The iPhone 6S features a 7000 series aluminum chassis for enhanced structural integrity. The iPhone 7 Plus builds on this with an IP67 rating for splash, water, and dust resistance, a feature not present in the iPhone 6S. This means the iPhone 7 Plus offers better protection against accidental liquid exposure.

The performance of a smartphone directly influences how smoothly applications run and how efficiently daily tasks are handled.

• System Responsiveness: The iPhone 6S is equipped with a processor that handles everyday applications and multitasking effectively for its generation. The iPhone 7 Plus, with its newer processor, offers a noticeable improvement in overall speed and efficiency, leading to faster app loading times and smoother transitions between tasks.
• Multitasking Capabilities: The iPhone 6S comes with 2GB of RAM, which allows for a reasonable number of applications to run simultaneously. The iPhone 7 Plus features 3GB of RAM, providing more headroom for demanding applications and more fluid multitasking, especially when switching between several open apps.
• Storage Options: The iPhone 6S was available with storage capacities including 16GB, 32GB, 64GB, and 128GB. The iPhone 7 Plus offered larger base storage options, starting at 32GB and going up to 128GB and 256GB, providing more space for apps, photos, and videos.
• Battery Behavior: The iPhone 6S has a 1715 mAh battery, providing up to 10 hours of internet use or 11 hours of video playback on a new device. The larger iPhone 7 Plus houses a 2900 mAh battery, which generally translates to longer usage times between charges, particularly for users who frequently stream media or use power-intensive applications.

The display is a primary interface for smartphone interaction, and both models offer distinct viewing experiences.

• Display Technology and Size: Both the iPhone 6S and iPhone 7 Plus utilize IPS LCD technology. The iPhone 6S features a 4.7-inch display, while the iPhone 7 Plus offers a larger 5.5-inch screen, providing a more expansive viewing area.
• Resolution and Clarity: The iPhone 6S has a resolution of 1334 x 750 pixels at 326 pixels per inch (ppi). The iPhone 7 Plus boasts a higher resolution of 1920 x 1080 pixels at 401 ppi, resulting in a sharper image with finer detail, especially noticeable when viewing high-resolution content.
• Brightness and Color: The iPhone 6S display offers a typical maximum brightness of 500 nits. The iPhone 7 Plus improves upon this with a typical maximum brightness of 625 nits and supports a wide color display (P3), which allows for more accurate and vibrant color reproduction.
• Interactive Features: Both models include 3D Touch, a pressure-sensing technology that allows for new ways to interact with the screen by distinguishing between a light tap and a deeper press.

Camera capabilities are a significant consideration for many users, and these two iPhones offer different photographic experiences.

• Rear Camera System: The iPhone 6S features a single 12-megapixel rear camera with an f/2.2 aperture, capable of recording 4K video at 30 frames per second. The iPhone 7 Plus introduces a dual 12-megapixel camera system, comprising a wide-angle lens (f/1.8) and a telephoto lens (f/2.8). This dual-camera setup enables 2x optical zoom and the popular Portrait mode, which creates a depth-of-field effect.
• Low-Light Performance and Stabilization: The iPhone 7 Plus benefits from a wider f/1.8 aperture on its main lens and optical image stabilization (OIS) on both lenses, which helps in capturing clearer photos and videos in challenging lighting conditions and reduces blur from camera shake. The iPhone 6S Plus (the larger variant of the 6S) also had OIS, but the standard iPhone 6S did not. Both models feature True Tone flash, with the iPhone 7 Plus upgrading to a Quad-LED True Tone flash for improved illumination.
• Front Camera: For selfies and video calls, the iPhone 6S has a 5-megapixel front-facing camera. The iPhone 7 Plus upgrades this to a 7-megapixel front camera, offering higher resolution and improved detail for front-facing photography and 1080p HD video recording.
• Audio Experience: The iPhone 7 Plus includes stereo speakers, providing a more immersive audio experience for media consumption compared to the mono speaker on the iPhone 6S.