Just after the launch of Apple Pay, Apple offered an Apple Pay Retail Kit in early 2015 to businesses and organizations who would potentially accept Apple Pay. I requested and received the kit via mail. It is unopened, but presumably contains stickers and other retail Apple Pay signage.
This particular iPhone 7 Plus model was used with an AT&T network in the United States. All iPhone 7 Plus models used a 5.5-inch widescreen multitouch Retina HD display at 1920×1080 (401 ppi). It used a taptic-engine that provided a clickless Home button. The iPhone 7 Plus used three cameras: two rear 12-megapixel cameras (one with a wide-angle and one with a 2x telephoto lens) and a front FaceTime HD camera (7 megapixels and 1080p).
The iPhone 7 Plus was originally available in five color options: silver (white glass front and a silver back), gold (white glass front and a gold back), rose gold (white glass front and a pink-tinted gold back), black (black glass front and a matte black back), and jet black (black glass front and a high-gloss anodized and polished black aluminum back). On March 21, 2017, Apple added a (PRODUCT) RED Special Edition with a white glass front and a red aluminum back.
The iPhone 7 Plus was splash, water, and dust-resistant (but not waterproof). It had a Lightning port, but lacked a headphone jack.
Internally, the iPhone 7 Plus used a 64-bit Apple A10 Fusion processor with four cores; 3 GB of RAM; and 32, 128, or 256 GB of storage. It supported 802.11a/b/g/n/ac Wi-Fi, Bluetooth 4.2, LTE (4G), and NFC for Apple Pay.
This particular iPhone 6 model was used an AT&T network (and functioned throughout North America). All iPhone 6 models had a 4.7-inch multi-touch screen at 1334×750 (326 ppi, Retina HD display). It had two cameras: a rear 8 megapixel iSight camera (1080p) and a front 1.2 megapixel FaceTime camera (720p).
The iPhone 6 was originally available in three color options: silver (white glass front and a silver aluminum back), gold (white glass front and a gold aluminum back), and space gray (black glass front and a medium-gray aluminum back). The iPhone used a unibody design with rounded sides (similar to the iPod touch Generation 5). The glass screen curved slightly at the edges. It also included a Touch ID fingerprint sensor.
The iPhone 6 used a 1.4 GHz 64-bit Apple A8 processor with 1 GB of RAM and 16, 32, 64, or 128 GB of storage. In addition to 802.11a/b/g/n/ac Wi-Fi, Bluetooth 4.0/4.2, and LTE (4G), it included NFC for Apple Pay transactions. It had both a bottom-mounted headphone jack and a Lightning port.