Head to head

MacBook Air 15" (M3) vs MacBook Air 13" (M3)

They split the 4 rankable specs evenly, so cost decides it: MacBook Air 13" (M3) costs $200 less.

Catalog as of September 1, 2026

Why, in numbers

Processor: MacBook Air 15" (M3) lists Apple M3 (8-core CPU) (Apple sheet, 2026-09-02); MacBook Air 13" (M3) lists Apple M3 (8-core CPU, 10-core GPU, 16-core Neural Engine) (Apple sheet, 2026-09-02).
Memory: MacBook Air 15" (M3) lists 16GB unified (Apple sheet, 2026-09-02); MacBook Air 13" (M3) lists 16 GB unified memory (Apple sheet, 2026-09-02).
Claimed battery life: MacBook Air 15" (M3) lists Up to 18 hours Apple TV app movie playback (other published figure, not on maker sheet); MacBook Air 13" (M3) lists Up to 18 hours Apple TV app / 15 hours wireless web (other published figure, not on maker sheet).
Size: MacBook Air 15" (M3) lists 15.3 inches (Apple sheet, 2026-09-02); MacBook Air 13" (M3) lists 13.6 inches (Apple sheet, 2026-09-02).
Resolution: MacBook Air 15" (M3) lists 2880 × 1864 (Apple sheet, 2026-09-02); MacBook Air 13" (M3) lists 2560 × 1664 (224 ppi) (Apple sheet, 2026-09-02).

Manufacturer list price, not a live offer. Confirm current pricing before you buy.

MacBook Air 15" (M3)

$1,2992 spec wins

Swap

Compare a different laptop

Microsoft Surface Pro 11th Edition$999 Dell XPS 13 (2024)$1,299 Microsoft Surface Laptop 7 (15")$1,499 ASUS ROG Zephyrus G14 (2024)$1,599 MacBook Pro 14" (M4)$1,599 HP Spectre x360 16 (2024)$1,699 Dell XPS 14 (2024)$1,699 Lenovo Yoga Pro 9i 16$1,799 Lenovo ThinkPad X1 Carbon Gen 12$1,849 Framework Laptop 16$1,999 MacBook Pro 14" (M4 Pro)$1,999 Lenovo ThinkPad X1 Carbon Gen 13 Aura Edition$1,999 Dell XPS 16 (2024)$2,199 ASUS ROG Zephyrus G16 (2024)$2,299 MacBook Pro 16" (2024)$2,499 Razer Blade 16 (2024)$2,999 MacBook Pro 16" (M4 Max)$3,499

MacBook Air 13" (M3)

$1,0992 spec wins

Swap

Compare a different laptop

Generational Upgrade Analysis

Generational Comparison

Apple sibling models compared across generations.

Our recommendation: Compare the spec differences below to see if the price premium justifies the newer model's additions.

Buying for

Every rankable spec counts once. Pick a lens to score only what matters for your laptop.

Your devices

Select your ecosystem to flag non-functional features or platform lock-in.

Straight answer

Overall: 2 to 2

Tied overall. MacBook Air 13" (M3) is cheaper.

The 4 rankable overall specs split 2 to 2.
Saves $200 at list price.

2 MacBook Air 15" (M3)4 rankable of 29 specsMacBook Air 13" (M3) 2

Deal-breakers

tick what would make you walk away

No touchscreenrow
No pen or touch input for marking up PDFs or sketching.
Trips:MacBook Air 15" (M3) · NoTrips:MacBook Air 13" (M3) · No
RAM cannot be upgradedrow
The memory you buy today is the memory you keep.
Trips:MacBook Air 15" (M3) · No (soldered)Trips:MacBook Air 13" (M3) · No (soldered unified memory)
No HDMI portrow
Projectors and meeting-room TVs need a dongle.
Trips:MacBook Air 15" (M3) · No (USB-C display output)Trips:MacBook Air 13" (M3) · No (via adapter)
macOS, not Windowsrow
Windows-only software such as some CAD, games and corporate VPN clients needs a workaround.
Trips:MacBook Air 15" (M3) · macOS SonomaTrips:MacBook Air 13" (M3) · macOS Sequoia
60 Hz displayrow
Scrolling and games look less smooth than on a 120 Hz panel.
Trips:MacBook Air 15" (M3) · 60 HzTrips:MacBook Air 13" (M3) · 60 Hz

At a glance

The handful of numbers that decide most purchases in this category.

3 of 4 differ

Panelsame

MacBook Air 15" (M3)

Liquid Retina IPS LED

MacBook Air 13" (M3)

Liquid Retina IPS LED

Processor≠

MacBook Air 15" (M3)

Apple M3 (8-core CPU)

MacBook Air 13" (M3)

Apple M3 (8-core CPU, 10-core GPU, 16-core Neural Engine)

Memory≠

MacBook Air 15" (M3)

16GB unified

MacBook Air 13" (M3)

16 GB unified memory

Claimed battery life≠

MacBook Air 15" (M3)

Up to 18 hours Apple TV app movie playback

MacBook Air 13" (M3)

Up to 18 hours Apple TV app / 15 hours wireless web

True 3-Year Cost of Ownership (TCO)

Upfront price + 3 years of consumables, fees & essential add-ons

MacBook Air 15" (M3)

Upfront list price$1,299

3-Year Estimated Total$1,299

MacBook Air 13" (M3)

Upfront list price$1,099

Essential add-ons (USB-C to HDMI/USB-A adapter)+$25

3-Year Estimated Total$1,124

Commuter Portability & Lap Comfort Check

Real-world travel weight including chargers, bag fit, and lap thermals.

Ergonomic & Spatial Check

Backpack Sleeve Compatibility

MacBook Air 15" (M3)

Standard laptop bag sleeve

MacBook Air 13" (M3)

Ultra-thin 0.44 in profile; slips into any bag sleeve

Lap Ergonomics & Vent Placement

Bottom intake vents can choke and heat up your lap when used on beds or couches.

MacBook Air 15" (M3)

Standard hinge exhaust

MacBook Air 13" (M3)

Fanless zero-noise design; stays comfortably cool on lap

Total Travel Weight (Chassis + Charger)

Always factor in the power adapter when calculating commuter bag weight.

MacBook Air 15" (M3)

Standard carry weight

MacBook Air 13" (M3)

2.70 lb laptop + 35W dual charger = ~3.2 lb total carry

The 90-Day Owner Regret Check

Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.

Post-Purchase Truths

MacBook Air 15" (M3): What to watch for

Maintenance
Requires ongoing care to maintain peak out-of-box performance.
Regular cleaning, firmware updates, and standard care are recommended to preserve longevity.

MacBook Air 13" (M3): What to watch for

Maintenance
Requires ongoing care to maintain peak out-of-box performance.
Regular cleaning, firmware updates, and standard care are recommended to preserve longevity.

MacBook Air 15" (M3)$1,2992 wins

MacBook Air 13" (M3)$1,0992 wins

Display Performance Build & input Ports Battery Software

19 of 29 attributes differ. Identical rows are dimmed.

Display

leads 2-0

Display specifications. Middle column is MacBook Air 15" (M3), right column is MacBook Air 13" (M3).
Size	15.3 inches (wins this row: higher)	13.6 inches
Panel	Liquid Retina IPS LED	Liquid Retina IPS LED
Resolution	2880 × 1864 (wins this row: higher)	2560 × 1664 (224 ppi)
Refresh rate	60 Hz	60 Hz
BrightnessNot on the official sheet	500 nits	500 nits
Color	P3 wide color, True Tone	P3 wide color
Touchscreen	No	No

Performance

6 differences

Performance specifications. Middle column is MacBook Air 15" (M3), right column is MacBook Air 13" (M3).
Processor	Apple M3 (8-core CPU)	Apple M3 (8-core CPU, 10-core GPU, 16-core Neural Engine)
Graphics	10-core Apple GPU	Integrated 10-core Apple GPU
Memory	16GB unified	16 GB unified memory
RAM upgradable	No (soldered)	No (soldered unified memory)
Storage	512GB SSD	512 GB SSD
Storage upgradable	No (soldered)	No (soldered SSD)

Build & input

leads 2-0

Build & input specifications. Middle column is MacBook Air 15" (M3), right column is MacBook Air 13" (M3).
Weight	3.3 lb (1.51 kg)	2.7 lb (1.24 kg) (wins this row: lower)
Thickness	11.5 mm	11.3 mm (0.44 inches) (wins this row: lower)
Materials	100% recycled aluminum enclosure	100% recycled aluminum unibody
Keyboard	Magic Keyboard with Touch ID	Magic Keyboard with Touch ID
Trackpad	Force Touch trackpad	Force Touch trackpad
Webcam	1080p FaceTime HD camera	1080p FaceTime HD camera
Speakers	Six-speaker sound system with force-cancelling woofers	Four-speaker sound system with Spatial Audio

Ports

3 differences

Ports specifications. Middle column is MacBook Air 15" (M3), right column is MacBook Air 13" (M3).
Thunderbolt / USB-C	2× Thunderbolt / USB 4 ports	2× Thunderbolt / USB 4 ports
HDMI	No (USB-C display output)	No (via adapter)
SD card	No	No
MagSafe	MagSafe 3	Yes (MagSafe 3)
Headphone jack	Yes (3.5 mm with high-impedance support)	Yes (3.5 mm with high-impedance support)
Charger	35W Dual USB-C Port Compact Adapter + MagSafe 3	30W / 35W Dual USB-C Port Compact Power Adapter

Battery

1 differences

Battery specifications. Middle column is MacBook Air 15" (M3), right column is MacBook Air 13" (M3).
Claimed battery lifeNot on the official sheet	Up to 18 hours Apple TV app movie playback	Up to 18 hours Apple TV app / 15 hours wireless web

Software

2 differences

Software specifications. Middle column is MacBook Air 15" (M3), right column is MacBook Air 13" (M3).
Operating system	macOS Sonoma	macOS Sequoia
Repairability	Low (soldered RAM and SSD)	Low (integrated SoC design)

Most rows are from the official spec sheet. Marked rows are other published figures or our summary, not lab tests we ran.

MacBook Air 15" (M3) source MacBook Air 13" (M3) source

Which one should you buy

Pick this one if

MacBook Air 15" (M3)

Fanless 15-inch ultrabook powered by Apple M3 chip, offering silent operation and extreme battery efficiency.

Completely fanless silent operation
Slim 11.5mm aluminum design with massive battery life
Vibrant Liquid Retina display with dual external monitor support

What you give up

Display limited to 60Hz without ProMotion
Base model memory and storage are soldered and non-upgradable

Full MacBook Air 15" (M3) specs →

Pick this one if

MacBook Air 13" (M3)

13.6-inch ultraportable with Apple M3 chip, Liquid Retina display, and fanless silent design.

Exceptional battery life (up to 18 hours)
Fanless completely silent operation
Compact lightweight design (2.7 lb)

What you give up

Supports only up to two external displays with lid closed
Base model starts at 256GB storage

Full MacBook Air 13" (M3) specs →

Best for each use

Travel

In a bag every day: weight, battery, a screen you can read on a train

For travel, buy the MacBook Air 13" (M3).

Leads 2 of 2 rankable travel specs.
Weight: 2.7 lb vs 3.3 lb
Thickness: 11.3 mm vs 11.5 mm
It is also $200 cheaper.

Heavy work

Video, 3D, compiles or games: CPU, GPU, memory and panel quality

Too close to call on heavy work from the spec sheets.

Processor: Apple M3 vs Apple M3
Graphics: 10-core Apple GPU vs Integrated 10-core Apple GPU

Longevity

Keep it five years: upgradable parts, repairability, ports without dongles

Too close to call on longevity from the spec sheets.

RAM upgradable: No vs No
Storage upgradable: No vs No

Every answer above is scored from published figures. A lens uses only the rows that matter for that use, including marked rows that are not on the official sheet. Switch lenses interactively in the panel above.

Done deciding?

Open the full standalone spec sheet for either device.

MacBook Air 15" (M3) spec sheet MacBook Air 13" (M3) spec sheet

Manufacturer pages: MacBook Air 15" (M3) ↗ · MacBook Air 13" (M3) ↗

Common questions

Which is cheaper, the MacBook Air 15" (M3) or the MacBook Air 13" (M3)?

MacBook Air 13" (M3) costs $200 less at list price.

What is the biggest catch with the MacBook Air 15" (M3) or MacBook Air 13" (M3)?

Both has this deal-breaker: no touchscreen. No pen or touch input for marking up PDFs or sketching.

Which is better for travel, the MacBook Air 15" (M3) or the MacBook Air 13" (M3)?

For travel, buy the MacBook Air 13" (M3). Leads 2 of 2 rankable travel specs. Weight: 2.7 lb vs 3.3 lb

What cannot be compared from spec sheets?

Of the 29 specs tracked here, 25 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.

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