💻 MacBook Air 13 M5 vs MacBook Air 15 M5: UK business comparison

MacBook Air 13" (M5) vs MacBook Air 15" (M5) compared across 22 matched specifications — scores, the full spec table and a verdict.

MacBook Air 13" (M5)

Apple

Overall Score

Best for mobile UK professionals who prioritise lightweight portability for frequent travel and commutes.

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MacBook Air 15" (M5)

Apple

Overall Score

Best for desk-based UK business users who value a larger display and extended battery capacity for all-day productivity without external monitors.

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MacBook Air 13 M5 vs MacBook Air 15 M5: performance overview

Scores based on quantifiable specification values (1-10 scale)

MacBook Air 13" (M5)

MacBook Air 15" (M5)

Performance

MacBook Air 13" (M5)

9.0

MacBook Air 15" (M5)

9.0

Display

MacBook Air 13" (M5)

8.5

MacBook Air 15" (M5)

8.5

Battery & Thermals

MacBook Air 13" (M5)

8.5

MacBook Air 15" (M5)

9.0

Manageability & Security

MacBook Air 13" (M5)

7.5

MacBook Air 15" (M5)

7.5

Expandability & Repair

MacBook Air 13" (M5)

4.0

MacBook Air 15" (M5)

4.0

Ecosystem & Software

MacBook Air 13" (M5)

9.0

MacBook Air 15" (M5)

9.0

Value

MacBook Air 13" (M5)

8.0

MacBook Air 15" (M5)

8.0

Detailed Specifications

Specification	MacBook Air 13" (M5) Apple	MacBook Air 15" (M5) Apple
Performance
Processor	Apple M5 — 10-core CPU (4P + 6E), 8-core GPU (10-core to order) with per-core Neural Accelerators, 16-core Neural Engine	Apple M5 — 10-core CPU, 10-core GPU with per-core Neural Accelerators, 16-core Neural Engine
CPU cores	10-core CPU (4P + 6E)	10-core CPU
Graphics	8-core GPU (10-core to order) with per-core Neural Accelerators	10-core GPU with per-core Neural Accelerators
Discrete GPU	Integrated Apple silicon GPU (part of M5 SoC)	Integrated Apple silicon GPU (part of M5 SoC)
Memory & storage
Maximum memory	Up to 32 GB unified memory (LPDDR5x, 153 GB/s bandwidth)	Up to 32 GB unified memory (LPDDR5x, 153 GB/s)
Memory type	Unified memory (LPDDR5x, 153 GB/s bandwidth)	Unified memory (LPDDR5x, 153 GB/s)
Maximum storage	Up to 4 TB SSD (512 GB / 1 TB / 2 TB / 4 TB options)	Up to 4 TB SSD
Display
Display size	13.6"	15.3"
Resolution	2560 × 1664	2880 × 1864
Brightness	500 nits	500 nits
Panel	Liquid Retina (IPS), P3 wide colour, True Tone	Liquid Retina (IPS), P3 wide colour, True Tone
Connectivity
Thunderbolt / USB4 ports	2× Thunderbolt 4 (USB-C, PD, DP)	2× Thunderbolt 4
Ports	MagSafe 3, 2× Thunderbolt 4 (USB-C, PD, DP), 3.5 mm combo	MagSafe 3, 2× Thunderbolt 4, 3.5 mm combo
Physical
Weight (from)	✓1.23 kg (2.7 lb)	1.51 kg (3.3 lb)
Dimensions	304.1 × 215.0 × 11.3 mm	340.4 × 237.6 × 11.5 mm
Security & management
Intel vPro	N/A — Apple silicon (Secure Enclave)	N/A — Apple silicon (Secure Enclave)
Secured-core PC	N/A — Secured-core PC is a Windows feature; Apple silicon uses the Secure Enclave	N/A — Secured-core PC is a Windows feature; Apple silicon uses the Secure Enclave
Copilot+ PC (40+ TOPS NPU)	N/A — Copilot+ PC is a Windows programme; Apple ships Apple Intelligence	N/A — Copilot+ PC is a Windows programme; Apple ships Apple Intelligence
Battery
Battery capacity	53.8 Wh — up to 18 hrs video streaming, 15 hrs wireless browsing	✓66.5 Wh — up to 18 hrs video streaming, 15 hrs wireless browsing
Rated battery life	Up to 18 hrs video streaming, 15 hrs wireless browsing	Up to 18 hrs video streaming, 15 hrs wireless browsing
Support
Operating system	macOS Tahoe (with Apple Intelligence)	macOS Tahoe (with Apple Intelligence)
Base warranty	1-year limited; AppleCare+ for Business extends to 3 years + ADP	1-year limited; AppleCare+ for Business extends to 3 years + ADP

Performance

Processor

MacBook Air 13" (M5)Apple M5 — 10-core CPU (4P + 6E), 8-core GPU (10-core to order) with per-core Neural Accelerators, 16-core Neural Engine

MacBook Air 15" (M5)Apple M5 — 10-core CPU, 10-core GPU with per-core Neural Accelerators, 16-core Neural Engine

CPU cores

MacBook Air 13" (M5)10-core CPU (4P + 6E)

MacBook Air 15" (M5)10-core CPU

Graphics

MacBook Air 13" (M5)8-core GPU (10-core to order) with per-core Neural Accelerators

MacBook Air 15" (M5)10-core GPU with per-core Neural Accelerators

Discrete GPU

MacBook Air 13" (M5)Integrated Apple silicon GPU (part of M5 SoC)

MacBook Air 15" (M5)Integrated Apple silicon GPU (part of M5 SoC)

Memory & storage

Maximum memory

MacBook Air 13" (M5)Up to 32 GB unified memory (LPDDR5x, 153 GB/s bandwidth)

MacBook Air 15" (M5)Up to 32 GB unified memory (LPDDR5x, 153 GB/s)

Memory type

MacBook Air 13" (M5)Unified memory (LPDDR5x, 153 GB/s bandwidth)

MacBook Air 15" (M5)Unified memory (LPDDR5x, 153 GB/s)

Maximum storage

MacBook Air 13" (M5)Up to 4 TB SSD (512 GB / 1 TB / 2 TB / 4 TB options)

MacBook Air 15" (M5)Up to 4 TB SSD

Display

Display size

MacBook Air 13" (M5)13.6"

MacBook Air 15" (M5)15.3"

Resolution

MacBook Air 13" (M5)2560 × 1664

MacBook Air 15" (M5)2880 × 1864

Brightness

MacBook Air 13" (M5)500 nits

MacBook Air 15" (M5)500 nits

Panel

MacBook Air 13" (M5)Liquid Retina (IPS), P3 wide colour, True Tone

MacBook Air 15" (M5)Liquid Retina (IPS), P3 wide colour, True Tone

Connectivity

Thunderbolt / USB4 ports

MacBook Air 13" (M5)2× Thunderbolt 4 (USB-C, PD, DP)

MacBook Air 15" (M5)2× Thunderbolt 4

Ports

MacBook Air 13" (M5)MagSafe 3, 2× Thunderbolt 4 (USB-C, PD, DP), 3.5 mm combo

MacBook Air 15" (M5)MagSafe 3, 2× Thunderbolt 4, 3.5 mm combo

Physical

Weight (from)

MacBook Air 13" (M5)1.23 kg (2.7 lb)

MacBook Air 15" (M5)1.51 kg (3.3 lb)

Dimensions

MacBook Air 13" (M5)304.1 × 215.0 × 11.3 mm

MacBook Air 15" (M5)340.4 × 237.6 × 11.5 mm

Security & management

Intel vPro

MacBook Air 13" (M5)N/A — Apple silicon (Secure Enclave)

MacBook Air 15" (M5)N/A — Apple silicon (Secure Enclave)

Secured-core PC

MacBook Air 13" (M5)N/A — Secured-core PC is a Windows feature; Apple silicon uses the Secure Enclave

MacBook Air 15" (M5)N/A — Secured-core PC is a Windows feature; Apple silicon uses the Secure Enclave

Copilot+ PC (40+ TOPS NPU)

MacBook Air 13" (M5)N/A — Copilot+ PC is a Windows programme; Apple ships Apple Intelligence

MacBook Air 15" (M5)N/A — Copilot+ PC is a Windows programme; Apple ships Apple Intelligence

Battery

Battery capacity

MacBook Air 13" (M5)53.8 Wh — up to 18 hrs video streaming, 15 hrs wireless browsing

MacBook Air 15" (M5)66.5 Wh — up to 18 hrs video streaming, 15 hrs wireless browsing

Rated battery life

MacBook Air 13" (M5)Up to 18 hrs video streaming, 15 hrs wireless browsing

MacBook Air 15" (M5)Up to 18 hrs video streaming, 15 hrs wireless browsing

Support

Operating system

MacBook Air 13" (M5)macOS Tahoe (with Apple Intelligence)

MacBook Air 15" (M5)macOS Tahoe (with Apple Intelligence)

Base warranty

MacBook Air 13" (M5)1-year limited; AppleCare+ for Business extends to 3 years + ADP

MacBook Air 15" (M5)1-year limited; AppleCare+ for Business extends to 3 years + ADP

★

Expert Analysis

Specs web-verified from manufacturer datasheets · Servnet-reviewed · Last reviewed 26 Jul 2026

For UK business professionals, the choice between the 13-inch and 15-inch MacBook Air M5 hinges on portability versus screen real estate, with most other specifications shared. The 13-inch model is significantly lighter at 1.23 kg, making it the clear pick for those who travel frequently or hot-desk between offices. The 15-inch variant, at 1.51 kg, offers a larger 2880×1864 Liquid Retina display at the same 224 ppi, which can reduce the need for an external monitor and is ideal for spreadsheet-intensive tasks. Both laptops use the Apple M5 chip with a 10-core CPU (the 13-inch starts with an 8-core GPU, configurable to the 10-core GPU standard on the 15-inch), up to 32 GB of unified memory, and up to 4 TB of storage, so day-to-day productivity feels equally swift. Battery capacity differs—66.5 Wh on the 15-inch versus 53.8 Wh on the 13-inch—yet both are rated for up to 18 hours of video streaming, so real-world longevity is comparable. Connectivity is identical with two Thunderbolt 4 ports, MagSafe 3, and a 3.5 mm jack. Security relies on Apple’s Secure Enclave; there is no Intel vPro or Windows Secured-core, which may matter for certain regulated UK industries. Ultimately, pick the 13-inch if saving every gram counts, or the 15-inch if you crave more screen space and a slightly larger battery buffer during long days at a fixed workstation.

MacBook Air 13" (M5)

Best for mobile UK professionals who prioritise lightweight portability for frequent travel and commutes.

MacBook Air 15" (M5)

Best for desk-based UK business users who value a larger display and extended battery capacity for all-day productivity without external monitors.

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MacBook Air 13" (M5)

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