New · 2025
Venu 4
$549.99
Released September 2025
VS
GarminLifestyle Series
2025
Vivoactive 6
$299.99
Released April 2025
Key Differences at a Glance
Feature
Venu 4
Vivoactive 6
Price
$549.99
$299.99 (almost half)
Display Size
36 mm AMOLED
33 mm AMOLED (1.2")
Resolution
454 × 454 px
390 × 390 px
Multi-band GPS
Yes (SatIQ) ✓
No ✗
ECG App
Yes — Garmin ECG ✓
No ✗
Speaker & Mic
Yes — Wrist Calling ✓
No ✗
Altimeter
Yes — Barometric ✓
No ✗
Bezel Material
Stainless Steel
Aluminium
Case Sizes
41 mm and 45 mm
42 mm only
Thickness
12.5 mm
10.9 mm (thinner)
LED Flashlight
Yes ✓
No ✗
Display & Design
Venu 4
- 36 mm AMOLED display in 45 mm case (also 41 mm option)
- Resolution: 454 × 454 pixels
- Stainless steel bezel with fiber-reinforced polymer body
- Thickness: 12.5 mm — slightly thicker, more premium feel
- Corning Gorilla Glass 3 lens
- Built-in LED flashlight — first in the Venu line
- Higher peak brightness vs Vivoactive 6
Vivoactive 6
- 33 mm AMOLED display, 1.2" — 390 × 390 px
- Single size: 42 mm case only
- Aluminium bezel with fiber-reinforced polymer body
- Thickness: 10.9 mm — notably thinner and lighter
- Corning Gorilla Glass 3 lens
- No dedicated LED flashlight (screen flash only)
- Weighs just 23g — one of the lightest Garmin GPS watches
GPS & Navigation
Venu 4
- Multi-band GPS with SatIQ — auto-selects best satellites
- Supports GPS, GLONASS, Galileo, BeiDou, QZSS
- Dual-frequency improves precision near tall buildings and tree canopy
- SatIQ conserves battery by disabling dual-frequency in open sky
- Barometric altimeter for accurate elevation data
- GPS mode: up to 19 hours (multi-band: up to 17 hours)
Vivoactive 6
- Standard single-band GPS — no multi-band sensor
- Supports GPS, GLONASS, Galileo, BeiDou, QZSS
- Improved satellite coverage vs Vivoactive 5
- No barometric altimeter — cannot record elevation gain
- GPS mode: up to 21 hours (All Systems: up to 17 hours)
- Course/route following supported
ECG & Cardiac Health
Venu 4
- Compatible with the Garmin ECG App (FDA approved)
- Take on-demand electrocardiogram readings from your wrist
- Regular cardiac health monitoring
- Elevate Gen 5 heart rate sensor
- HRV status monitoring
- Skin temperature sensor
Vivoactive 6
- No ECG support — Garmin ECG App incompatible
- Elevate Gen 4 heart rate sensor
- Continuous wrist-based heart rate monitoring
- HRV status tracking (overnight)
- SpO2 blood oxygen monitoring
- No skin temperature sensor
Speaker, Mic & Calling
Venu 4
- Built-in speaker and microphone
- Answer and make calls directly from the wrist
- Bluetooth calling via paired smartphone
- Send voice messages
- Voice assistants: Siri, Google Assistant, Bixby
- On-watch voice commands for Garmin OS
Vivoactive 6
- No built-in speaker or microphone
- Cannot answer or make calls from the watch
- Must rely on paired smartphone for calls
- Receives smart notifications from phone
- No voice assistant support on-watch
Battery Life
Venu 4 (45 mm)
- Smartwatch mode: up to 12 days
- Always-on display: up to 4 days
- GPS mode: up to 19 hours
- Multi-band GPS: up to 17 hours
- GPS + Music: up to 9 hours
Vivoactive 6
- Smartwatch mode: up to 11 days
- Always-on display: up to 5 days
- GPS mode: up to 21 hours
- All Systems GPS: up to 17 hours
- GPS + Music: up to 8 hours
- Power save mode: up to 21 days
Health & Fitness Tracking
Venu 4
- Elevate Gen 5 heart rate sensor + ECG app
- Training Readiness, Status & Load
- Garmin Fitness Coach — advanced coaching plans
- Health Status daily wellness summary
- Lifestyle Logging — caffeine, alcohol tracking
- Sleep Alignment & circadian rhythm insights
- Advanced running metrics: vertical oscillation, ground contact time, lactate threshold
- Body Battery, SpO2, stress, respiration, HRV
- Heat & altitude acclimation support
- Triathlon & trail running profiles
Vivoactive 6
- Elevate Gen 4 heart rate sensor (no ECG)
- 80+ built-in sport profiles
- Running Dynamics — ground contact time, vertical oscillation, stride length
- Running Power & PacePro technology
- Daily Suggested Workouts
- Sleep Coach with nap detection & Morning Report
- Body Battery, SpO2, stress, respiration, HRV
- Women's health tracking
- Mobility & strength workout animations
Smart Features
Venu 4
- Garmin Pay (NFC contactless payments)
- 8 GB storage — Spotify, Deezer, Amazon Music
- Bluetooth 5.3, Wi-Fi, ANT+
- Accessibility: spoken watch faces, color-blind filters
- Smart Alarm (wakes at optimal sleep phase)
- Connect IQ app store
- Wrist-based calling & voice assistants
Vivoactive 6
- Garmin Pay (NFC contactless payments)
- 8 GB storage — Spotify, Deezer, Amazon Music, YouTube Music
- Bluetooth, Wi-Fi, ANT+
- Smart Alarm (new in Vivoactive 6)
- Smart notifications (texts, emails, calls)
- Connect IQ app store
- eBike sensor support (ANT+)
What They Share
✓5 ATM water resistance
✓8 GB internal storage
✓AMOLED touchscreen display
✓Corning Gorilla Glass 3
✓Garmin Pay (NFC)
✓Offline music storage & streaming
✓GPS, GLONASS, Galileo, QZSS, BeiDou
✓Body Battery energy monitor
✓SpO2 blood oxygen tracking
✓Bluetooth, ANT+, Wi-Fi
✓Smart Wake Alarm
✓Connect IQ app store
✓Two-button layout
✓20 mm quick-release straps
Full Specs Comparison
| Specification | Venu 4 (45 mm) | Vivoactive 6 |
|---|---|---|
| Released | September 2025 | April 2025 |
| Launch Price | $549.99 | $299.99 |
| Case Size | 41 mm and 45 mm | 42 mm only |
| Display Size | 36 mm AMOLED | 33 mm AMOLED (1.2") |
| Display Resolution | 454 × 454 px | 390 × 390 px |
| Thickness | 12.5 mm | 10.9 mm |
| Bezel Material | Stainless steel | Anodized aluminium |
| Case Material | Fiber-reinforced polymer | Fiber-reinforced polymer |
| Display Glass | Corning Gorilla Glass 3 | Corning Gorilla Glass 3 |
| Water Rating | 5 ATM | 5 ATM |
| GPS Networks | GPS, GLONASS, Galileo, BeiDou, QZSS | GPS, GLONASS, Galileo, BeiDou, QZSS |
| Multi-band GPS | Yes (SatIQ) | No |
| Barometric Altimeter | Yes | No |
| Heart Rate Sensor | Elevate Gen 5 | Elevate Gen 4 |
| ECG | Yes (Garmin ECG App) | No |
| Speaker & Mic | Yes | No |
| LED Flashlight | Yes | No (screen flash only) |
| Battery (Smartwatch) | Up to 12 days | Up to 11 days |
| Battery (GPS) | Up to 19 hrs | Up to 21 hrs |
| Battery (AOD) | Up to 4 days | Up to 5 days |
| Storage | 8 GB | 8 GB |
| Garmin Pay | Yes | Yes |
| Sport Profiles | 25+ | 80+ |
| Connectivity | BT 5.3, Wi-Fi, ANT+ | BT, Wi-Fi, ANT+ |
Verdict — Which Should You Buy?
Choose Venu 4 if…
- You want ECG monitoring and advanced cardiac health tracking
- You need multi-band GPS for precise tracking in cities or dense environments
- You want to answer calls and use voice assistants from your wrist
- Elevation data and a barometric altimeter matter for your activities
- You prefer a premium stainless steel look and feel
- A built-in LED flashlight is useful for early morning or night activities
- You want deeper health tools — Health Status, Sleep Alignment, Lifestyle Logging
Choose Vivoactive 6 if…
- Budget is your priority — nearly half the price of the Venu 4
- You prefer a lighter, thinner watch for all-day comfort
- Standard GPS accuracy is sufficient for your activities
- You don't need ECG or wrist-based calling
- 80+ sport profiles and running power metrics cover your needs
- Slightly longer GPS session battery (21 hrs vs 19 hrs) is important
- Core health tracking and sleep coaching cover your everyday needs