Terms of the previous offer
- Confirm the £105 reduction and £1,314.99 final basket price before paying; the exact product page itself showed £1,419.99.
- Costco membership is required, and local warehouse prices can vary from the online price.
- Costco states that the 15-inch MacBook Air includes a USB-C to MagSafe 3 cable but no power adapter; a 35W-or-higher USB-C PD source is required.
- The selected Midnight listing is UK model MDVH4B/A, but confirm the physical keyboard layout in the final order details.
Why the previous offer stood out
- The lower checkout price would save £105 against Costco’s visible £1,419.99 product-page price for the exact new 15-inch M5 / 16GB / 512GB configuration.
- The M5 10-core CPU and 10-core GPU, 16GB unified memory and 512GB SSD form a balanced specification for study, office work, coding and everyday creative use.
- The 15.3-inch 500-nit Liquid Retina display, roughly 1.51kg chassis and quoted up-to-18-hour battery life suit buyers who want more screen space without a heavy laptop.
Full specifications
| Brand | Apple |
|---|---|
| Model | MacBook Air 15 M5 / MDVH4B/A / Costco 661851 |
| Processor brand | Apple |
| Processor | Apple M5 10-core CPU |
| Processor family | Apple M5 |
| NPU performance (TOPS) | Not confirmed |
| Memory (GB) | 16 |
| Ram type | Unified memory |
| Storage (GB) | 512 |
| Storage type | SSD |
| Gpu brand | Apple |
| Graphics | Apple M5 integrated 10-core GPU |
| Gpu type | integrated |
| Graphics memory (GB) | Not confirmed |
| GPU power (W) | Not confirmed |
| Screen size (inches) | 15.3 |
| Resolution | 2880x1864 |
| Screen type | Liquid Retina IPS |
| Screen finish | glossy |
| Refresh rate (Hz) | 60 |
| Brightness (nits) | 500 |
| Colour gamut | P3 wide colour |
| Weight (kg) | 1.51 |
| Operating system | macOS |
| Keyboard layout | UK model MDVH4B/A; confirm physical layout at checkout |
| Charger included | No |
Condition, warranty and price evidence
- Condition
- New
- Warranty
- Costco links this product to its concierge support and selected-item 90-day returns information. Confirm the written Apple warranty and Costco return terms with the order.
- Eligibility
- Costco membership is required. The exact Midnight MDVH4B/A page still showed £1,419.99 on 10 August, but the previously reported £105 automatic checkout reduction could not be reproduced. Do not rely on the previous £1,314.99 total.
- Recorded availability
- Rechecked on 2026-08-10: exact Costco item 661851 remained in stock at a visible £1,419.99 with shipping included and an estimated two-business-day delivery, but no £105 automatic reduction or £1,314.99 total was exposed. The deal is removed from current recommendations.
- Price recorded
These notes describe retailer listings and recorded checks. They are not a hands-on review or a guarantee of stock. How we check prices.