iPad mini 4 (A1550 · Wi-Fi + Cellular) (2015)
This entry describes iPad mini 4, model A1550, from 2015, in the Wi-Fi + Cellular configuration. Its documented initial capacities are 16 / 64 / 128 GB. The current support sheet also lists 32 GB, which is not in the cited initial documentation.

Resized, no crop or retouching.
Original labelled schematic, not a photograph or scale drawing.
Specs
| Key feature | A1550 |
| Chip | Apple A8 + M8 |
| Launch storage | 16 / 64 / 128 GB |
| Display | 7.9″ · Multi-Touch Retina |
| Resolution | 2048 × 1536 |
| Density | 326 ppi |
| Wi-Fi | 802.11a/b/g/n/ac |
| Bluetooth | 4.2 |
| Cellular radio | LTE 1/2/3/4/5/7/8/13/17/18/19/20/25/26/28/29/38/39/40/41; UMTS/HSPA/DC-HSDPA; CDMA EV-DO Rev. A/B; GSM/EDGE |
| Connector | Lightning |
| Dimensions | 203.2 × 134.8 × 6.1 mm |
| Weight | 304 g |
| Battery | 19.1 Wh |
Announcement and storage
This entry describes iPad mini 4, model A1550, from 2015, in the Wi-Fi + Cellular configuration. Its documented initial capacities are 16 / 64 / 128 GB. The current support sheet also lists 32 GB, which is not in the cited initial documentation.
Display and design
It uses Apple A8 + M8 and a 7.9-inch Multi-Touch display with 2048 × 1536 pixels at 326 ppi. It measures 203.2 × 134.8 × 6.1 mm and weighs 304 g. Apple calls it a Retina display. It includes Touch ID in the Home button.
Connections and battery
The rear iSight camera has 8 MP, f/2.4 and 1080p video. The front FaceTime HD camera has 1.2 MP and 720p video. It has Lightning, a 3.5 mm headphone jack, dual microphones and speakers. The built-in battery is rated at 19.1 Wh; Apple quotes up to 10 hours of Wi-Fi use, depending on conditions.
Radio and SIM
The consulted technical sheet documents 802.11a/b/g/n/ac Wi-Fi and Bluetooth 4.2. Cellular radio for A1550: LTE 1/2/3/4/5/7/8/13/17/18/19/20/25/26/28/29/38/39/40/41; UMTS/HSPA/DC-HSDPA; CDMA EV-DO Rev. A/B; GSM/EDGE. The cellular model uses a nano-SIM. Historical frequencies do not guarantee service from a current carrier.
Sources
- Apple · technical specifications
- Apple · archived original specifications
- Apple · model identification
- dimensionapple.com · Original schematic illustration
- ipad-mini-4
- ipad-mini-4 ⇄ iPad mini 4 (A1550 · Wi-Fi + Cellular)