Garmin Forerunner 255 vs Garmin Venu Sq 2
The Verdict
Both watches excel at fitness tracking with identical health sensors including SpO2 and heart rate monitoring, plus sleep tracking, but they target different user priorities. The Forerunner 255 dominates endurance with 30 hours of GPS battery and a larger 46mm case suited for distance runners, offering the full 14-day smartwatch battery. Its MIP display excels in sunlight readability and consumes minimal power. The Venu Sq 2 counters with a superior 320x360 AMOLED screen that delivers vibrant colors and exceptional clarity indoors, though it drains faster at only 26 hours GPS and 11 days smartwatch mode. At 38 grams versus 49 grams, the Venu Sq 2 feels noticeably lighter. Connectivity mirrors across both with GPS, NFC, WiFi, and Bluetooth 5.0. The $100 price gap heavily favors the Venu Sq 2 for casual fitness enthusiasts wanting a polished display and daily wear comfort. Choose the Forerunner 255 if you're serious about trail marathons or multi-day runs demanding maximum battery endurance and outdoor visibility. For everyday runners and general fitness tracking, the Venu Sq 2 delivers better value and a more engaging interface.
Who Should Buy
Buy the Garmin Forerunner 255 if…
- →14-day battery life means weekly charging at most
- →Multi-band GPS for exceptional outdoor tracking accuracy
- →Morning Report with daily training readiness and HRV status
Buy the Garmin Venu Sq 2 if…
- →11-day battery life destroys Apple Watch and Galaxy Watch endurance
- →AMOLED display with always-on mode at an affordable price
- →Garmin's best-in-class GPS accuracy for running and cycling
Category Scores
Pros & Cons
Garmin Forerunner 255
Pros
- 14-day battery life means weekly charging at most
- Multi-band GPS for exceptional outdoor tracking accuracy
- Morning Report with daily training readiness and HRV status
- Race Predictor estimates finish times for 5K to marathon
- Lightweight at 49 g and comfortable for 24/7 wear
Cons
- MIP display lacks the vibrancy of AMOLED competitors
- No touchscreen on base model — button-only navigation
- No ECG or blood pressure monitoring
- Limited smart features compared to Apple Watch or Wear OS
- Third-party app ecosystem is small
Garmin Venu Sq 2
Pros
- 11-day battery life destroys Apple Watch and Galaxy Watch endurance
- AMOLED display with always-on mode at an affordable price
- Garmin's best-in-class GPS accuracy for running and cycling
- 25+ built-in sport modes with detailed workout analytics
- NFC for Garmin Pay contactless payments
Cons
- No ECG or skin temperature monitoring
- Square design is polarizing — not as elegant as round watches
- Garmin OS has far fewer third-party apps than Wear OS
- No cellular option — phone must be nearby for notifications
Full Specifications
| Spec | Garmin Forerunner 255 | Garmin Venu Sq 2 |
|---|---|---|
| Software | Garmin proprietary OS | Garmin OS |
| Body | ||
| Weight | 49 g | 38 g |
| Case material | Fiber-reinforced polymer | Aluminum bezel, fiber-reinforced polymer |
| Water resistance | 5ATM | 5ATM |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 14 days (smartwatch), 30 hrs GPS | Up to 11 days (smartwatch mode), 26 hrs GPS |
| Display | ||
| Size | 46mm | 40 mm (1.41 inches) |
| Type | MIP (Memory-in-Pixel) transflective | AMOLED |
| Always-on display | ||
| Resolution | 260 x 260 | 320 x 360 |
| Processor | ||
| Chipset | Garmin custom SoC | Garmin proprietary |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.0 |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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