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Garmin Forerunner 35 vs 45 vs 45S Compared

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Garmin is one of the biggest brands in the smartwatch industry and they have some of the best fitness smartwatches to their name. In this comparison chart, we compare three low priced Garmin fitness smartwatches; the Garmin Forerunner 35 vs 45 vs 45S specs and features to find out the differences. While the Forerunner 35 is a bit older and lacks some features found in the 45/45S, it’s quite cheaper. Compare to find the best choice for you.

Garmin Forerunner 35 vs 45 vs 45S: Specifications Compared

 
 
Product Info
Garmin Forerunner 35 Specs

Garmin Forerunner 35 Specifications, Features and Price

Garmin Forerunner 45 Specs

Garmin Forerunner 45 Specifications, Features and Price

Garmin Forerunner 45S Specs

Garmin Forerunner 45S Specifications, Features and Price

Price $169.99 $99.00 $199.99 $169.97 $199.99
ABOUT DEVICE ABOUT DEVICE ABOUT DEVICE ABOUT DEVICE
Device name Garmin Forerunner 35 Garmin Forerunner 45 Garmin Forerunner 45S
Device type Fitness/Sport smartwatch Fitness/Sport smartwatch Fitness/Sport smartwatch
Gender Unisex Unisex Unisex
Release date August, 2016 April, 2019 April, 2019
Predecessor Garmin Forerunner 35 Garmin Forerunner 35
Successor Garmin Forerunner 45
Versions Garmin Fenix 5, Garmin Fenix 5S, Garmin Fenix 5X Garmin Forerunner 45, Garmin Forerunner 45S Garmin Forerunner 45, Garmin Forerunner 45S
BODY BODY BODY BODY
Dimension 35.5 x 40.7 x 13.3 mm 42 x 42 x 11.4 mm 39.5 x 39.5 x 11.4 mm
Weight 37 grams 36 grams 32 grams
Shape Rectangular Circular Circular
Case material Fiber-reinforced polymer Fiber-reinforced polymer Fiber-reinforced polymer
Strap material Silicone Silicone Silicone
Bezel material Ceramics Fiber-reinforced polymer Fiber-reinforced polymer
Strap size 140 – 200 mm 20 mm 20 mm
Screen protection Chemically strengthened glass Chemically strengthened glass Chemically strengthened glass
Water resistance Yes, 5ATM Yes, 5ATM Yes, 5ATM
Durability test
Swim-proof Yes, recommended Yes Yes
Color Black, Blue, White Black, Red Purple, White
DISPLAY DISPLAY DISPLAY DISPLAY
Display size 0.93 inch 1.04 inches 1.04 inches
Display type LCD, Memory-in-pixel (MIP), transflective LCD, Memory-in-pixel (MIP), transflective LCD, Memory-in-pixel (MIP), transflective
Display resolution 240 x 240 px 208 x 208 pixels 208 x 208 pixels
Pixel density
Always on Yes Yes Yes
Custom watch face Yes Yes Yes
Input type (not touchscreen), 4 Physical buttons (not touchscreen), 5 Physical buttons (not touchscreen), 5 Physical buttons
CONNECTIVITY CONNECTIVITY CONNECTIVITY CONNECTIVITY
Bluetooth Bluetooth Bluetooth ANT+, Bluetooth
Bluetooth calling No No No
GPS Yes Galileo, GLONASS, GPS Galileo, GLONASS, GPS
NFC No No No
Wi-Fi No No No
MEMORY MEMORY MEMORY MEMORY
RAM
ROM
Memory card slot No No No
CELLULAR CONNECTIVITY CELLULAR CONNECTIVITY CELLULAR CONNECTIVITY CELLULAR CONNECTIVITY
Technology None None None
SIM type None None None
Band
NOTIFICATIONS NOTIFICATIONS NOTIFICATIONS NOTIFICATIONS
SMS alert Yes Yes Yes
Calls alert Yes Yes Yes
Email alert Yes Yes Yes
Event reminder Yes Yes Yes
Third-party apps alert Yes Yes Yes
MEDIA MEDIA MEDIA MEDIA
Audio No No No
Bluetooth music No No No
Loudspeaker No No No
Microphone No No No
Camera No No No
Radio No No No
SENSORS SENSORS SENSORS SENSORS
Accelerometer Yes Yes Yes
Altimeter No No No
Ambient light Yes Yes
Barometer No No No
Compass No No No
ECG No No No
Gyroscope No No No
HRM Yes Yes Yes
Pulse oximeter No No No
Thermometer No No No
Other sensors
ACTIVITY TRACKING ACTIVITY TRACKING ACTIVITY TRACKING ACTIVITY TRACKING
Blood oxygen No No
Blood Pressure No No No
Calories Yes Yes Yes
Distance Yes Yes Yes
ECG tracking No No No
Fitness Level Yes Yes
Heart rate monitoring Yes Yes Yes
Sleep tracking Yes Yes Yes
Steps Yes Yes Yes
Stress Yes Yes
Incidental fall detection No Yes Yes
Menstrual cycle No
VO2 Max Yes Yes Yes
Swim-tracking Yes Yes Yes
Swim-heart tracking No No No
On-screen workout No No No
Sport modes Yes Yes Yes
BATTERY BATTERY BATTERY BATTERY
Battery type non-removable Lithium-polymer non-removable Lithium-polymer non-removable Lithium-polymer
Battery capacity
Battery life GPS mode: 13hrs, Smartwatch mode: up to 9 days GPS mode: 13hrs, Smartwatch mode: 7 days GPS mode: 13hrs, Smartwatch mode: 7 days
Charging type Charging dock Charging dock Charging dock
Charging time 1-2 hours 1-2 hours 1-2 hours
Solar power No No No
PLATFORM PLATFORM PLATFORM PLATFORM
Chipset
CPU
GPU
Operating system Proprietary OS Proprietary OS Proprietary OS
MISC MISC MISC MISC
Companion app Garmin Connect Garmin Connect Garmin Connect
Compatibility Android, iOS Android, iOS Android, iOS
Payment system None None None
Interchangeable strap Yes 20mm, Yes 20mm, Yes
Voice command No No No
Find my phone Yes Yes Yes
Box content Charger, Garmin Forerunner 35, Manual, Straps Charger, Garmin Forerunner 45, Manual, Straps Charger, Garmin Forerunner 45S, Manual, Straps
Price $169.99 $99.00 $199.99 $169.97 $199.99

Garmin Forerunner 35 vs 45 vs 45S: Fitness Tracking Features

Garmin Forerunner 35Garmin Forerunner 45Garmin Forerunner 45S
Activity Tracking Features

Steps counter, floors climbed, fitness age, Move IQ
intensity minutes and distanced traveled.
YesYesYes
Body Battery Energy Monitor

Lets you see your body’s energy levels throughout the day so you can find the best times for activity and rest.
NoYesYes
Pulse OX Sensor

The Pulse Ox sensor gauges your blood oxygen saturation during the day and as you sleep to show how well your body is absorbing oxygen.
NoNoNo
Stress Tracking

Helps you find out if you’re having a calm, balanced or stressful day. Relax reminders will even prompt you to do a short breathing activity when you’re feeling stressed.
YesYesYes
Menstrual Cycle Tracking

Lets you use the Garmin Connect™ app to track your cycle, log physical and emotional symptoms and learn about training and nutrition during each phase of your cycle. Even get cycle tracking information on your wrist.
NoNoNo
Hydration Tracking

Log your daily fluid intake as a reminder to stay hydrated. You can even have an auto goal for hydration that adjusts based on how much sweat you lose during activities — even underwater.
NoNoNo
Respiration Tracking

See how you’re breathing throughout the day, during sleep and during breath-work and yoga activities.
NoNoNo
Advanced Sleep Monitoring

Get a full picture of how you’re sleeping, with a breakdown of your light, deep and REM sleep stages as well as Pulse Ox and respiration data
YesYesYes
Heart Rate Tracking

The watch constantly samples your heart rate2 and will alert you if it stays high while you’re at rest. It also helps gauge how hard you work during activities even underwater.
YesYesYes
Mindful Breathing

When you want to relax or focus, you can start a breath-work activity, and this watch will track your stress and respiration to help you get a better understanding of how you’re breathing.
NoNoNo
On-Screen Animated Workout Modes

Easy-to-follow, animated cardio, strength, yoga and Pilates workouts come preloaded on the watch, and you can download more from the Garmin Connect app.
NoNoNo
Preloaded Workout Modes

Track all the ways you move with more than 20 preloaded GPS and indoor sports apps — including walking, running, cycling, pool swimming, golf and more.
YesYesYes
Garmin Coach

Get a personal running coach on your wrist, for free, to help you train for your next 5K, 10K or half-marathon.
NoYesYes
Safety and Tracking Features

When your watch and phone are paired, your live location can be sent to your contacts manually or — during outdoor activities — automatically with built-in incident detection.

Also Livetrack, Group LiveTrack and Live event sharing allow you to invite other to join you in your training.
No, only LiveTrackYesYes
Gym & Fitness Equipment

Available gym profiles; Strength, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Pilates and Yoga.
FewerYesYes
Training, Planning and Analysis Features

Available run profiles; Running, Treadmill Running, Indoor Track Running, Trail Running.

GPS speed and distance, customizable activity profiles, advanced training, VO2 Max., heat and altitude acclimation, training load, training effect, auto and manual mutisport activities, Garmin and Strava live segments.
FewerMoreMore
ClimbPro Feature

Use ClimbPro ascent planner on downloaded courses to see real-time information on your current and upcoming climbs, including gradient, distance and elevation gain.
NoNoNo
Outdoor Recreation Features

Outdoor recreational features include hiking, climbing, mountain biking, skiing, snowboarding, XC skiing, stand up paddleboarding, rowing, kayaking, jumpmaster, tactical
FewerMoreMore
Multi-GNSS Support

Access multiple global navigation satellite systems (GPS, GLONASS and Galileo) to track in more challenging environments than GPS alone.
YesYesYes
TOPO Maps

Preloaded Topographical (TOPO) maps allow you use TOPO maps with Trendline Popularity Routing to find the best routes and navigate your adventures effortlessly
NoNoNo
Ski Maps

Preloaded Ski maps allow you view run names and difficulty ratings for 2,000 worldwide ski resorts.
NoNoNo
Round-trip Routing
Enter a distance you want to travel, and get suggested routes that will bring you back to your starting point. Trendline™ popularity routing helps you find the best local paths.
NoNoNo
Turn-by-turn Navigation

Follow a route or course with help from turn-by-turn directions, which let you know ahead of time when the next turn is coming.
NoNoNo
ABC sensors

Navigate your next trail with ABC sensors, including an altimeter for elevation data, barometer to monitor weather and three-axis electronic compass
NoNoNo
Running Features

Available run profiles include running, treadmill running, indoor track running, trail running
FewerMoreMore
PACEPRO Technology

A first-of-its-kind PacePro feature helps keep you on pace with grade-adjusted guidance as you run a course.
NoNoNo
Golf Courses

Access full-color CourseView maps for more than 41,000 golf courses around the world, and get button targeting and the PlaysLike Distance feature.
NoNoNo
Swimming Features

Available swimming profiles; pool swimming, open water swimming, swimming/running.

Other features include; tracks metrics such as distance, pace, stroke count, stroke distance and SWOLF.
NoFewFew
Underwater Wrist-based Heart Rate Tracking

Features underwater wrist-based heart rate tracking that helps you manage your swimming intensity.
NoNoNo

Garmin Forerunner 35 vs 45 vs 45S: Battery Life

Forerunner 35 Forerunner 45 Forerunner 45S
Smartwatch Mode: Up to 9 days
GPS mode: Up to 13 hours
Smartwatch Mode: Up to 7 days
GPS mode: Up to 13 hours
Smartwatch Mode: Up to 7 days
GPS mode: Up to 13 hours

Garmin Forerunner 35 vs 45 vs 45S: Editor’s Pick

garmin forerunner 45S specifications, features and price

Garmin Forerunner 35 vs 45 vs 45S: Prices Compared