MacBook Pro Thickness 2024-2026: Full Model Comparison

# MacBook Pro Thickness 2024-2026: Full Model Comparison

Apple's MacBook Pro has long been synonymous with premium build quality and portability. As we move through 2026, the question of device thickness remains important for professionals weighing portability against performance. Whether you're deciding between current models or planning an upgrade, understanding the physical dimensions—particularly thickness—can influence your purchasing decision.

In this guide, we'll examine the thickness of every MacBook Pro model available in 2024, 2025, and 2026, and explore how Apple's design philosophy has evolved.

MacBook Pro Thickness: The 15.5mm Standard

Apple has maintained remarkable consistency in MacBook Pro thickness across the 2024-2026 generation. All current models—whether 14-inch or 16-inch—feature a 15.5mm thickness, continuing the design established with the M3 generation in 2023.

This standardization applies to:

• 14-inch MacBook Pro (M5, M5 Pro, M5 Max)
• 16-inch MacBook Pro (M4 Pro, M4 Max, M5 Pro, M5 Max)

Despite housing significantly more powerful processors, improved cooling systems, and expanded RAM/storage options, Apple hasn't increased the chassis thickness—a testament to their engineering efficiency.

2024 MacBook Pro Models: Thickness Specs

The 2024 MacBook Pro lineup introduced the M4 Pro and M4 Max chips while maintaining the proven 15.5mm form factor.

14-inch MacBook Pro (2024)

• Thickness: 15.5mm
• Weight: Approximately 3.5 lbs (1.6 kg)
• Processors: M4 Pro, M4 Max
• Display: 14.2-inch Liquid Retina XDR

16-inch MacBook Pro (2024)

• Thickness: 15.5mm
• Weight: Approximately 4.7 lbs (2.1 kg)
• Processors: M4 Pro, M4 Max
• Display: 16.2-inch Liquid Retina XDR

2025 MacBook Pro Models: New M5 Generation

The 2025 update brought the M5 chip to the 14-inch base model while the 16-inch continued with M4 variants. Notably, the 2025 generation saw a weight reduction of approximately 50 grams across both sizes, while maintaining the identical 15.5mm thickness.

14-inch MacBook Pro (2025)

• Thickness: 15.5mm
• Weight: Approximately 3.4 lbs (1.55 kg) — 50g lighter than 2024
• Processors: M5, M5 Pro, M5 Max
• Key Feature: All models now include M5-series chips

16-inch MacBook Pro (2025)

• Thickness: 15.5mm
• Weight: Approximately 4.6 lbs (2.08 kg) — slight weight reduction
• Processors: M4 Pro, M4 Max (base) + M5 Pro, M5 Max (higher-end)
• Key Feature: Hybrid M4/M5 lineup offering choice across performance tiers

2026 MacBook Pro Models: Current State

By 2026, Apple has expanded the M5 Pro and M5 Max availability across the entire lineup, delivering up to 2x faster performance in some tasks compared to previous generations. The physical design remains unchanged.

14-inch MacBook Pro (2026)

• Thickness: 15.5mm
• Weight: 3.4 lbs (1.55 kg)
• Processors: M5 (base), M5 Pro, M5 Max
• Innovation: 2x faster processing in select workloads

16-inch MacBook Pro (2026)

• Thickness: 15.5mm
• Weight: 4.6 lbs (2.08 kg)
• Processors: M5 Pro, M5 Max
• Advantage: Larger display and additional ports compared to 14-inch

Thickness Comparison Table

What Does 15.5mm Really Mean?

To put this in perspective, 15.5mm (approximately 0.61 inches) is:

• Thinner than: Most Windows ultrabooks and competing laptops
• Comparable to: The thickness of an iPad Pro or premium smartphone
• Practical implication: Easily fits in most laptop bags and backpacks without adding bulk

Apple achieved this thinness while maintaining:

• Full-size keyboard and trackpad
• Multiple Thunderbolt 4/USB-C ports
• Extensive cooling system for high-performance chips
• MagSafe charging
• HDMI and SD card slots (on 16-inch)

How Does MacBook Pro Thickness Compare to Competition?

When evaluating MacBook Pro thickness against alternatives, consider:

• Dell XPS 13/14: Typically 13-14mm (slightly thinner)
• ASUS ZenBook: Often 13.3mm (slimmer profile)
• Lenovo ThinkPad X1: Around 15.4mm (comparable)
• Surface Laptop Studio: 19.5mm (noticeably thicker)

While some competitors offer marginally thinner chassis, MacBook Pro balances thinness with professional-grade performance and build quality.

Weight vs. Thickness: The Portability Equation

Thickness and weight are distinct considerations. The 2025-2026 weight reduction of 50 grams might seem minor, but it matters for professionals carrying laptops daily:

• A 50-gram reduction is roughly equivalent to removing two AA batteries
• Over an 8-hour workday, this compounds to noticeable fatigue reduction
• The 14-inch at 3.4 lbs is notably lighter than the 16-inch at 4.6 lbs

Performance Doesn't Compromise Design

A critical achievement across 2024-2026 models is that performance increases haven't required design changes. The M5 generation delivers substantially more power than M4 predecessors while:

• Maintaining identical 15.5mm thickness
• Reducing overall weight
• Improving thermal efficiency
• Extending battery life

This efficiency reflects Apple's silicon expertise and refined thermal architecture.

Choosing Between 14" and 16" MacBook Pro

Both sizes maintain the same thickness, so your decision hinges on:

Real-World Impact of Thinness

For professionals, the 15.5mm thickness translates to:

• Fits standard laptop sleeves: Most protective cases accommodate this depth
• Airline compatibility: No issues with overhead bins or seat-back pockets
• Desk ergonomics: Pairs well with external monitors and keyboards
• Standing desk use: Doesn't obstruct sightlines when used vertically with a stand

Future Outlook: Will Thickness Change?

Based on 2024-2026 trends, Apple appears committed to the 15.5mm standard. Future upgrades will likely focus on:

• Further weight reduction (following 2025's precedent)
• Display improvements (higher refresh rates, better color accuracy)
• Processing power (continuing the M-series evolution)
• Battery efficiency (extending unplugged runtime)

A thickness reduction would require substantial redesign and might compromise thermal performance, making the current 15.5mm likely the sweet spot for professional laptops.

Related Comparisons

If you're weighing MacBook Pro options, you might also find these comparisons helpful:

• MacBook Pro M5 vs M4: Performance and Value Breakdown
• MacBook Pro 14-inch vs 16-inch: Which Size is Right for You
• MacBook Pro 2025 vs 2024: Should You Upgrade

Conclusion

The MacBook Pro maintained a consistent 15.5mm thickness across all 2024, 2025, and 2026 models, making it one of the thinnest professional laptops available. While thickness hasn't changed, Apple has made subtle improvements—reducing weight by 50 grams in 2025 and delivering significantly faster M5 processors throughout 2026.

Key takeaways for your decision:

1. Thickness is identical across generations — Don't choose a 2024 or 2025 model hoping for a slimmer 2026 design; they're all 15.5mm

2. Weight matters more than thickness — The 2025+ models are noticeably lighter, which matters for daily portability

3. Choose between 14" and 16" based on use case, not thickness — Both are equally thin

4. Performance varies significantly — M5 models outperform M4, but both maintain the same footprint

5. Current 2026 models represent the best balance — They offer the latest processors, reduced weight, and proven design

For 2026, unless you have specific budget constraints, the 14-inch M5 or 16-inch M5 Pro/Max models offer the most compelling combination of thinness, lightness, and performance. The unchanged 15.5mm thickness proves that Apple's design philosophy prioritizes versatility and portability without compromise.