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Garmin fēnix 2 vs Garmin Forerunner 10

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Garminfēnix 2GarminForerunner 10
Overview
ReleasedMarch 20142012
Display
Case sizes49 mm52.2 mm or 57.2 mm
PanelLCD–
Always-on displayYesYes
Display detailTransflective monochrome LCD, 31 mm diameter and 70 × 70 pixels; negative display with red LED backlight and physical buttons.Monochrome display, 55 × 32 pixels; 2.1 × 2.0 cm on the small version and 2.5 × 2.4 cm on the large version. Garmin does not identify its panel technology.
Health and fitness
ECGNoNo
Blood oxygenNoNo
Skin temperatureNoNo
Sleep apnoea alertsNoNo
High blood pressure alertsNoNo
Body compositionNoNo
Fall detectionNoNo
Crash detectionNoNo
GPSSingle-bandSingle-band
Water resistance50 m50 m
SensorsHigh-sensitivity GPS receiver, barometric altimeter, three-axis compass and accelerometer. Optional ANT+ heart-rate, HRM-Run, foot-pod, speed/cadence, power and tempe temperature sensors; no optical wrist heart-rate sensor.Built-in high-sensitivity GPS; no heart-rate sensor or compatible heart-rate and foot-pod accessories.
Fitness featuresRunning, cycling, pool and open-water swimming, multisport, hiking and skiing profiles; advanced workouts, Virtual Partner, Training Effect, VO2 max estimates, race prediction and recovery advice. Running dynamics require an HRM-Run chest strap; indoor pace and distance use the accelerometer.Outdoor time, distance, pace, calories, personal records, Auto Lap, Auto Pause, Virtual Pacer and run/walk intervals. No all-day step tracking.
Safety featuresBreadcrumb routes, waypoint navigation and TracBack to retrace the recorded route; no preloaded base maps.–
Battery and connections
Battery life (maker's claim)Up to 35 daysUp to 35 days
Mobile data optionNoNo
Works withiPhone and AndroidNo phone pairing
Battery life detailRechargeable 500 mAh lithium-ion battery; up to five weeks in watch mode, sixteen hours with normal GPS recording or fifty hours in UltraTrac with one-minute GPS polling, according to the owner's manual.Up to five weeks in watch mode or five hours with GPS training.
ChargingUSB contact charging/data cradle and AC adapter.Rechargeable lithium-ion battery with a USB charging and data clip.
ConnectivityBluetooth Smart phone notifications, Garmin Connect uploads and LiveTrack; USB computer transfer and ANT+ sensor connections. Garmin's 2015 catalogue confirms iPhone 4S or later and most Bluetooth Smart Android devices running Android 4.3 or later. The manual says ANT+ sensors cannot connect while Bluetooth is enabled.USB cable uploads runs to Garmin Connect through a computer; no Bluetooth or direct smartphone pairing.
Storage20 MB internal memory; up to 1,000 waypoints, fifty routes, 10,000 track points and 100 saved tracks.Seven runs on the watch, with up to 50 laps per activity on Garmin's Taiwan specification.
Design
Weight (lightest version)90.6 g36 g
SoftwareGarminGarmin
Case materialsCurved mineral-glass lens, shock-resistant housing and polyurethane wristband; 5 ATM water rating.Plastic case and band; 50 m water resistance.
Size49 × 49 × 17 mm; 90.6 g.Small 4.01 × 5.22 × 1.57 cm and 36 g; large 4.55 × 5.72 × 1.57 cm and 43 g. Longest case dimensions appear in the size comparison.
Colours–Original green/white and pink/white small versions and black/red large version; later colours varied by region.
BandsPolyurethane wristband; additional hook-and-loop fabric strap accommodates larger wrists or wearing over a jacket.–
In the boxWatch, fabric wrist-strap kit, USB charging/data cable, AC adapter and quick-start manual; HRM-Run chest strap included in the Performer Bundle.Watch, USB charging clip and manual.

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