Apple Watch Ultra vs. Garmin Fenix Series: A Comprehensive Comparison

Design & Build

• Garmin Fenix 8: Launched on August 27, 2024, the Fenix 8 features a rugged design with a 47mm or 51mm case. It offers an AMOLED display, built-in microphone and speaker for calls, and a 40m dive rating.

• Apple Watch Ultra 3: Expected to launch in September 2025, the Ultra 3 is rumored to have a 49mm titanium case with a slightly larger 2.12-inch display. It may include a built-in side camera for AI visual analysis and a thinner body design. 

Strap Tip: For the Fenix 8, consider rugged leather or silicone straps for durability. For the Ultra 3, premium nylon or titanium straps can enhance its sleek design.

Battery Life

• Garmin Fenix 8: Offers exceptional battery life, with the Fenix 8 Solar providing up to 28 days in smartwatch mode and up to 122 hours in GPS mode.

• Apple Watch Ultra 3: Expected to offer up to 36 hours of regular use, extendable to 60 hours with low-power settings. Tom's Guide

Strap Tip: Long battery life pairs well with breathable straps like nylon loops for all-day comfort.

Fitness & Sports Tracking

• Garmin Fenix 8: Designed for serious athletes, it offers advanced metrics including VO2 max, lactate threshold, and running dynamics. It also features a depth gauge for scuba and free-diving. Credit: DC Rainmaker

• Apple Watch Ultra 3: Expected to introduce high blood pressure monitoring and enhanced fitness tools like the AI-powered “Workout Buddy.” Credit: Tom's Guide

Strap Tip: Silicone or rubber straps are ideal for workouts, providing flexibility and sweat resistance.

Durability & Water Resistance

• Garmin Fenix 8: Water-resistant up to 100 meters, making it suitable for swimming and other water sports.

• Apple Watch Ultra 3: Certified to WR100 and EN13319 standards, suitable for recreational diving up to 40 meters.

Strap Tip: Waterproof straps like silicone or rubber are essential for aquatic activities.

Smart Features

• Garmin Fenix 8: Offers smart notifications and limited app support, focusing more on fitness and outdoor activities.

• Apple Watch Ultra 3: Expected to feature 5G support, satellite connectivity for off-grid texting, and a new S10 chip for faster performance. 

Strap Tip: Straps that are easy to swap let you transition from casual, business, and sports looks while maintaining comfort and style.

Replacement Straps for The Fenix 8: 

• Garmin Fenix 8 (51mm): The Larger of the Fenix 8s accommodates the 26mm QuickFit Straps similarly to the 7X. Shop Garmin Fenix 8 51mm Straps

• Garmin Fenix 8 (47mm): The Fenix 8 47mm and Fenix E 47mm both allow for 22mm QuickFit Straps. Shop Garmin Fenix 8 Straps or Fenix E Straps.

• Garmin Fenix 8 (43mm): The smallest of the Fenix 8 range, the 43mm still allows for QuickFit straps, however, the 43mm accommodates 22mm QuickFit Straps. Shop Garmin Fenix 8 43mm Replacement Strap. 

• Apple Watch Ultra 3: Similar to it's earlier models, the Ultra 3 is 49mm therefore fits the 42-49mm Watch Straps. With many aftermarket options, The Time Club offers a wide array of Apple Ultra 3 Straps. 

Final Thoughts

• Garmin Fenix 8: Ideal for dedicated athletes and outdoor adventurers who prioritise advanced fitness metrics, extended battery life, and comprehensive navigation tools.

• Apple Watch Ultra 3: Perfect for users seeking a balance between smartwatch functionality, stylish design, and active lifestyle features.

Strap Tip: Pair your smartwatch with a high-quality after market strap from The Time Club to enhance comfort, durability, and style, most importantly reduce watch strap rash.