iPhone 6s • Unlocked vs iPhone 7 • Unlocked

The iPhone 6S, released in September 2015, and the iPhone 7, launched in September 2016, represent two consecutive generations of Apple's smartphone line. While they share a similar design aesthetic, the iPhone 7 introduced several key enhancements, including improved camera capabilities, increased processing power, and enhanced durability features. Both devices operate on Apple's iOS platform, offering a consistent user experience.

When considering the practical lifespan of these devices, their release timelines and subsequent software support are key factors.

• Release Timeline: The iPhone 6S was released in September 2015, followed by the iPhone 7 in September 2016. This one-year difference impacts their overall software longevity.
• OS Support Duration: The iPhone 6S received major iOS updates up to iOS 15. The iPhone 7 also concluded its major OS updates with iOS 15, meaning the iPhone 7 benefited from a slightly longer period of receiving the latest software features due to its later release.
• Practical Lifespan: While both devices can still function, the iPhone 7's newer internal components and additional year of initial software support may offer a marginally extended practical lifespan for users who prioritize the latest software features and security updates. The iPhone 7 also introduced IP67 water and dust resistance, which contributes to its physical durability compared to the iPhone 6S.

The performance of these two iPhone models shows a progression in processing power and efficiency.

• Processor Capabilities: The iPhone 6S is equipped with a processor that handles everyday tasks and applications smoothly. The iPhone 7 features a newer generation processor, which provides a noticeable increase in speed and efficiency, leading to faster app loading times and more fluid multitasking.
• System Responsiveness: Users engaging in more demanding activities, such as graphically intensive games or heavy photo and video editing, may experience a more responsive and less prone-to-stuttering performance on the iPhone 7. Both devices come with 2GB of RAM, which supports general multitasking.
• Storage Options: The iPhone 6S was initially available with storage options starting from 16GB, while the iPhone 7 began with a 32GB base storage, offering more space for apps and media from the outset.
• Battery Behavior: The iPhone 7 has a larger battery capacity at 1960 mAh compared to the iPhone 6S's 1715 mAh. This, combined with a more efficient processor, generally translates to improved battery endurance for the iPhone 7 in typical use cases, potentially offering more screen-on time throughout the day.

Both the iPhone 6S and iPhone 7 feature similar display technologies and sizes, with some notable enhancements in the newer model.

• Display Technology and Size: Both phones utilize a 4.7-inch Retina HD IPS LCD display with a resolution of 1334x750 pixels, resulting in a pixel density of 326 pixels per inch. This provides clear and sharp visuals for general viewing.
• Brightness and Color: The iPhone 7 offers a higher typical maximum brightness of 625 nits compared to the iPhone 6S's 500 nits, which can improve visibility in bright outdoor conditions. Additionally, the iPhone 7 introduced a wide color display (P3), allowing for a broader range of colors to be reproduced, making images and videos appear more vibrant.
• Unique Feature: The iPhone 6S introduced 3D Touch, a pressure-sensing technology that allowed users to access shortcuts and contextual menus by pressing firmly on the screen. While the iPhone 7 retained this feature, its practical usage evolved over time.

The camera systems received significant upgrades from the iPhone 6S to the iPhone 7, particularly in low-light performance and video stabilization.

• Main Camera Capabilities: Both devices feature a 12-megapixel main camera capable of recording 4K video at 30 frames per second. However, the iPhone 7's main camera boasts a wider f/1.8 aperture, allowing it to capture more light, which improves performance in dimly lit environments. The iPhone 7 also introduced optical image stabilization (OIS) to the standard model, a feature previously exclusive to the larger 'Plus' models, reducing blur from handshakes in photos and videos.
• Flash and Front Camera: The iPhone 7 upgraded to a Quad-LED True Tone flash for more natural lighting in flash photography, compared to the dual-LED True Tone flash on the iPhone 6S. For selfies and video calls, the iPhone 7 features a 7-megapixel front-facing camera capable of 1080p HD video recording, a step up from the iPhone 6S's 5-megapixel front camera with 720p HD video.
• Audio Recording: The iPhone 7 also improved audio recording for videos, capturing stereo sound, whereas the iPhone 6S recorded in mono.