iPhone 15 Plus vs iPhone 6S
Shop iPhone
iPhone 15 Plus
Starting at
£439.65£799.00 new
iPhone 6S
Starting at
£32.09£149.00 newWhat's the difference between the iPhone 15 Plus and iPhone 6S?
iPhone 15 Plus vs 6S comes down to the chipset, RAM and battery. Refurbished, the iPhone 6S starts at £32.09, £407.56 less than the iPhone 15 Plus. The iPhone 15 Plus is the newer model, released in 2023.
Refurbished from
Chipset
RAM
Battery
Screen size
Screen type
- Chipset: Apple A16 Bionic on the iPhone 15 Plus, Apple A9 APL0898 on the iPhone 6S.
- The iPhone 15 Plus has more RAM: 6 GB vs 2 GB.
- The iPhone 15 Plus has a bigger battery: 4383 mAh vs 1715 mAh.
iPhone 15 Plus vs iPhone 6S specs
The iPhone 15 Plus and iPhone 6S differ significantly in features that suit different users. The iPhone 15 Plus offers a much larger screen with higher resolution and an OLED display, ideal for media and detailed viewing. It has a far bigger battery and supports 5G, making it better for longer use and faster connectivity. With more RAM, a modern chipset, and larger storage options, it handles multitasking and apps smoothly. The iPhone 6S is smaller and lighter with simpler specs, suitable for everyday use, basic apps, and those preferring a compact phone. Its Lightning connector and headphone jack may appeal to users with older accessories.
iPhone 15 Plus vs iPhone 6S price
Colour
iPhone 15 Plus vs iPhone 6S battery life and software updates
Durability covers battery size, operating system updates, and physical characteristics that affect how long a device can last in daily use. These factors influence how you manage your phone day to day.
Battery Capacity
The iPhone 15 Plus has a 4383 mAh battery, which is much larger than the iPhone 6S's 1715 mAh. This means the 15 Plus is suited for longer usage between charges, while the 6S fits users who use their phone less intensively or can charge more often.
Battery
Foldable
Ip rating
Software updates
Wireless charging
Year of release
iPhone 15 Plus vs iPhone 6S performance
Performance depends on chipset, RAM, and storage capacity, which affect how smoothly apps run and how much data you can keep on the device. These differences shape your experience with multitasking and storage for apps, photos, and files.
Chipset and RAM
The iPhone 15 Plus uses the Apple A16 Bionic chipset with 6 GB of RAM, supporting faster processing and better multitasking. The iPhone 6S has the Apple A9 APL0898 chipset with 2 GB of RAM, which suits basic app use and lighter multitasking.
Storage Options
The iPhone 15 Plus offers storage choices of 128GB, 256GB, and 512GB, suitable for storing large amounts of data, apps, and media. The iPhone 6S comes with 16GB, 32GB, or 64GB options, fitting users with simpler storage needs.
Chipset
RAM
iPhone 15 Plus vs iPhone 6S screen
Screen quality impacts how you see content, from photos and videos to reading text. Differences in size, resolution, and screen type affect clarity, colour, and viewing comfort.
Screen Size and Resolution
The iPhone 15 Plus has a 6.7 inch screen with a resolution of 1290 x 2796, offering a large and sharp display that suits watching videos and detailed tasks. The iPhone 6S has a smaller 4.7 inch screen with 750 x 1334 resolution, fitting users who prefer a compact device.
Screen Type
The iPhone 15 Plus features a Super Retina XDR OLED screen, which provides deeper contrast and more vivid colours. The iPhone 6S uses an IPS LCD screen, suitable for everyday viewing with good colour accuracy but less contrast.
Refresh rate
Resolution
Screen size
Screen type
iPhone 15 Plus vs iPhone 6S camera
Audiovisual features like cameras influence photo and video quality as well as video calling. Differences in megapixels can affect the detail captured.
Front Camera
The iPhone 15 Plus has a 12 megapixel front camera, which captures more detail for selfies and video calls. The iPhone 6S's 5 megapixel front camera suits basic photo needs and video chats.
Main Camera
With a 48 megapixel main camera, the iPhone 15 Plus is designed for higher detail and sharper photos. The iPhone 6S's 12 megapixel main camera works well for standard photography needs.
Camera type
Front camera
Main camera
iPhone 15 Plus vs iPhone 6S size and design
Other features include connectivity options, physical size, weight, and network compatibility, which affect how the phone fits your lifestyle and accessories.
Network and SIM
The iPhone 15 Plus supports 5G networks and offers both a physical SIM and eSIM. The iPhone 6S supports 4G networks with a physical SIM only. This suits users depending on network availability and SIM preferences.
Connector Type
The iPhone 15 Plus uses a USB-C connector, catering to users with modern accessories. The iPhone 6S has a Lightning connector and a 3.5 mm headphone jack, useful for those with older headphones or charging cables.
Size and Weight
The iPhone 15 Plus is larger and heavier at 160.9 mm tall, 77.8 mm wide, and 201 g. The iPhone 6S is smaller and lighter at 138.3 mm tall, 67.1 mm wide, and 143 g. The 6S suits those who prefer a compact and lightweight phone.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
iPhone 15 Plus or iPhone 6S: which should you buy?
Buy the iPhone 15 Plus if
- you want more RAM (6 GB vs 2 GB)
- you want a bigger battery (4383 mAh vs 1715 mAh)
- you want a bigger screen (6.7 inch vs 4.7 inch)
Buy the iPhone 6S if
- you want to spend less: it starts at £32.09, £407.56 less than the iPhone 15 Plus
- you want a lighter build (143 g vs 201 g)
- you want a headphone jack
What our customers say
Customers who chose the iPhone 15 Plus praise its condition and performance, often highlighting the excellent screen quality and smooth operation. Many mention the battery life lasting a full day and the benefit of the larger, clearer screen for media and general use. Some appreciate the switch to USB-C and the phone's overall look and feel. Several note the ease of setup and data transfer as well as the device feeling almost new despite being refurbished.
Those who bought the iPhone 6S often appreciate its compact size and light weight, with many customers pleased with the phone's condition and basic functionality. The camera and screen quality meet everyday needs and the phone is seen as a good choice for simple use or as a gift. Some mention battery life concerns but generally find the phone suitable for less demanding daily tasks.
The iPhone 15 Plus suits users who want a large, high-resolution screen, longer battery life, and faster performance for multitasking or media. The iPhone 6S fits those looking for a smaller, lighter phone with essential features for everyday use.
iPhone 15 Plus vs iPhone 6S FAQs
iPhone 15 Plus vs 6S comes down to the chipset, RAM and battery. Chipset: Apple A16 Bionic on the iPhone 15 Plus, Apple A9 APL0898 on the iPhone 6S. The iPhone 15 Plus has more RAM: 6 GB vs 2 GB.
The iPhone 6S is cheaper refurbished, from £32.09 compared with £439.65 for the iPhone 15 Plus.
The iPhone 15 Plus has a bigger battery: 4383 mAh vs 1715 mAh.
The iPhone 15 Plus has a higher-resolution main camera: 48 megapixels vs 12 megapixels.
The iPhone 15 Plus is still supported and can run iOS 27. Updates for the iPhone 6S ended in Mar 2025. Its last version is iOS 15.
The iPhone 15 Plus adds more RAM (6 GB vs 2 GB), a bigger battery (4383 mAh vs 1715 mAh) and a bigger screen (6.7 inch vs 4.7 inch). Refurbished, it costs £407.56 more (from £439.65 vs £32.09).
Refurbished, the iPhone 15 Plus comes in 128GB, 256GB and 512GB, and the iPhone 6S in 16GB, 32GB and 64GB.
