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Garmin Forerunner 965​ vs Fenix 8 – Check Which One Is Best & Why?

Garmin Fēnix 8 & Garmin Forerunner 965 share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the Garmin Fēnix 8 rather than the Garmin Forerunner 965.

Why Do I Recommend The Garmin Fēnix 8?

  • The Garmin Fenix 8 has built-in Solar charging for significantly extending battery life during long outdoor adventures without relying on wall charging, whereas the Garmin Forerunner 965 has no solar charging capability.
  • Garmin Fenix 8 features a fully integrated LED flashlight for enhanced visibility and safety in low-light and emergency situations, while the Garmin Forerunner 965 supports only screen illumination without a dedicated flashlight.
  • It includes a depth sensor with scuba and apnea dive modes to track underwater performance and depth accurately, whereas the Garmin Forerunner 965 includes swim tracking without dive-specific depth measurement.
  • The Garmin Fenix 8 supports a longer endurance battery in GPS mode for extended expedition tracking without frequent recharging, while the Garmin Forerunner 965 supports fewer GPS hours that require more charging on multiday trips.
  • Garmin Fenix 8 has a titanium or stainless steel bezel for higher structural durability in tough environments, whereas the Garmin Forerunner 965 uses a lighter polymer construction.
  • It comes with integrated speaker and microphone to allow wrist-based calling and quick voice-assistant commands for hands-free communication, while the Garmin Forerunner 965 includes no speaker or microphone hardware.
  • The Garmin Fenix 8 supports ECG hardware to help detect heart rhythm irregularities and provide medical-grade heart health insights, whereas the Garmin Forerunner 965 supports standard heart rate functions without ECG capabilities.
  • Garmin Fenix 8 includes leak-resistant inductive buttons to improve reliability in muddy, wet, or icy conditions for uninterrupted input during outdoor use, while the Garmin Forerunner 965 features conventional mechanical buttons.

Maybe the Garmin Forerunner 965 can make you comfortable because it’s a little bit cheaper than the Garmin Fēnix 8. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

Side-by-Side Comparison

FeatureGarmin Fēnix 8Garmin Forerunner 965
Display optionsAMOLED and Solar MIP variantsSingle AMOLED variant
Display sizeUp to 1.4″, 454 x 454 px1.4″, 454 x 454 px
Water rating10 ATM, dive-rated5 ATM, swim-rated
Dive sensor & dive sport modesDepth sensor + scubaNo depth sensor, no dedicated dive profiles
Battery life – smartwatchUp to ~16–48 daysUp to 23 days
Battery life – GPS onlyUp to ~84–149 hoursUp to 31 hours
Solar chargingAvailable on Solar Sapphire modelsNot available
Bezel materialTitanium or stainless steel optionsTitanium bezel only
Case materialFibre-reinforced polymer with metal rear coverFibre-reinforced polymer
Lens material optionsSapphire / Power Sapphire / Gorilla GlassCorning Gorilla Glass 3 DX
Speaker / microphoneBuilt-in speaker and microphoneNo onboard speaker / microphone
Wrist calling / voice assistantOn-watch calls and phone voice assistantAudio via phone / headphones only, no wrist calling
ECG capabilityECG app hardwareNo ECG hardware
LED flashlightIntegrated multi-LED flashlight in caseNo built-in flashlight
Button designLeakproof inductive buttonsStandard mechanical buttons
PriceCheck Fēnix 8 PriceCheck Forerunner 965 Price

What Common Both Can Do?

  • Built-in GPS / GNSS: Both watches include advanced multi-satellite positioning support for accurate route tracking outdoors. This helps runners, hikers, and cyclists record precise distance and pace metrics even in harder satellite conditions.
  • AMOLED display option: Each model features a bright, high-contrast display that increases readability in various lighting. This enhances visual mapping and data clarity during workouts or everyday use.
  • Heart rate monitoring: Both models utilize wrist-based optical sensors to measure real-time heart rate. This supports workout intensity tracking and continuous health monitoring throughout the day.
  • Pulse Ox sensor: Each watch can measure blood oxygen saturation during sleep or at high elevation. This helps users monitor overall wellness and oxygen adaptation during intense training or travel.
  • Advanced sleep tracking: Both devices evaluate sleep stages, duration, and quality. These insights help users better understand recovery and make informed adjustments to habits or training.
  • Multi-band GNSS: Both models support multi-frequency satellite reception for enhanced accuracy in difficult environments like dense city streets or forests. This ensures reliable performance for navigation and pacing.
  • Wrist-based running power: Both watches estimate power output directly from the wrist without sensors. This gives endurance athletes another metric for pacing and performance efficiency.
  • Wrist-based recovery metrics: Both track stress, rest, and activity data to determine recovery readiness. This helps athletes avoid overtraining and better structure training cycles.
  • Training Readiness: Each watch combines sleep, recovery, training load, and stress metrics to provide a single actionable score. This lets users assess how prepared they are for high-effort workouts.
  • VO2 Max: Both estimate VO2 Max as a measure of aerobic performance. Users can track long-term conditioning and see how fitness improves over time.
  • Full-color onboard maps: Both models allow navigation with detailed maps preloaded on the device. This makes it easier to explore new routes or follow planned courses without a phone.
  • Offline music storage: Users can download and play music directly from the watch with Bluetooth headphones. This supports phone-free training sessions with entertainment built-in.
  • Garmin Pay: Both include NFC capability for contactless payments. This provides convenience when leaving the phone or wallet at home during exercise.
  • Notifications with smartphone: Each watch displays calls, messages, and app alerts when paired to a phone. This maintains connectivity without needing to take out your smartphone.
  • Wi-Fi connectivity: Both models use Wi-Fi for syncing data and updating software quickly. This removes the need to always rely on Bluetooth for transfers.
  • Bluetooth connectivity: Each watch pairs with smartphones and accessories through Bluetooth. This expands compatibility with headphones and external sensors.
  • ANT+ connectivity: Both support ANT+ for advanced sensor ecosystems like chest straps and cycling power meters. Athletes can build customizable setups for precise data capture.
  • Swim / run / cycle tracking: Both include deep activity modes for the core triathlon sports. They provide metrics like stroke rate, cycling power support, and run cadence.
  • Customizable sports profiles: Users can tailor screens, metrics, and modes for unique workouts or activities. This personalization makes each training session more efficient.
  • Water resistance for swimming: Both devices are safe for pool and open-water training. Athletes can confidently track swim performance without risking watch damage.

Common Features

FeatureGarmin Fēnix 8Garmin Forerunner 965
Built-in GPS / GNSSYesYes
AMOLED display optionYesYes
Heart rate monitoringYesYes
Pulse Ox sensorYesYes
Advanced sleep trackingYesYes
Multi-band GNSSYesYes
Wrist-based running powerYesYes
Wrist-based recovery metricsYesYes
Training ReadinessYesYes
VO2 MaxYesYes
Full-color onboard mapsYesYes
Offline music storageYesYes
Garmin PayYesYes
Notifications with smartphoneYesYes
Wi-Fi connectivityYesYes
Bluetooth connectivityYesYes
ANT+ connectivityYesYes
Swim / run / cycle trackingYesYes
Customizable sports profilesYesYes
Water resistance for swimmingYesYes
Price Check Fēnix 8 Price
Check Forerunner 965 Price

FAQ

Are both watches suitable for triathlons?
Yes, both Garmin Fenix 8 and Forerunner 965 support swimming, cycling, and running tracking with full triathlon modes, making them well-equipped for multisport athletes.

Which watch is better for long outdoor adventures?
Garmin Fenix 8 is better suited thanks to its larger battery options, rugged build, dive-rated water resistance, and Solar model variants designed for extended exploration.

Which model is lighter and better for running comfort?
Garmin Forerunner 965 is noticeably lighter and slimmer, making it more comfortable for long-distance running and everyday wear.

Do both support detailed onboard maps?
Yes, both have full-color maps with turn-by-turn navigation available directly on the watch without requiring a smartphone.

Can I make phone calls from these watches?
Garmin Fenix 8 includes a speaker and microphone for wrist-based calling when paired to a phone, while Forerunner 965 does not support on-watch calling.

Do both support offline music?
Yes, both allow downloading playlists from services like Spotify or Amazon Music and playing them through Bluetooth headphones without a phone.

Can both track sleep and health metrics?
Yes, sleep tracking, Pulse Ox, heart rate, stress monitoring, and body energy metrics are supported on both devices for continuous wellness evaluation.

Which one has ECG capability?
Garmin Fenix 8 includes hardware for ECG functionality, while Forerunner 965 does not have ECG support built in.

Are they compatible with iPhone and Android?
Yes, both watches work with iOS and Android smartphones through the Garmin Connect app for syncing data, notifications, and settings.

Do both have touchscreen controls?
Yes, both use AMOLED touchscreens combined with physical buttons for flexible navigation during workouts or daily use.

Which is better for swimming?
Both are great for swimming and track metrics like pace, stroke count, and SWOLF, though the Fenix 8 has a higher water rating and added durability.

Can I use them for navigation without phone signal?
Yes, both have offline maps and GPS-only navigation so you can follow routes, waypoints, and trails even in remote areas without cellular coverage.

Do they support ANT+ and Bluetooth sensors?
Yes, each model supports a wide range of cycling power meters, chest straps, and other external sensors for advanced training needs.

Which one is more customizable?
Both support customizable data screens, watch faces, and sports profiles, but the Fenix 8 offers more hardware configuration choices like size, materials, and solar options.

How do their prices compare?
Fenix 8 sits at a higher price tier due to more rugged features and premium material options, while Forerunner 965 is typically more affordable while still offering premium performance.