Comparisons

Fitbit FB503WTGY vs Fitbit FB512GLWT

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Fitbit FB503WTGYFitbit FB512GLWT
Title Fitbit Ionic GPS Smart Watch, Blue-Gray/Silver, One Size (S and L Bands Included)Fitbit Sense Advanced Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends, White/Gold, One Size (S & L Bands Included)
Model Fitbit
FB503WTGY
Fitbit
FB512GLWT

Basic Info

Suggested Price $184.99$329.95
Sale Price Check Price*Check Price*
Release Sep 2017Sep 2020

Overview

DescriptionTrack your health and stay connected with this Fitbit Ionic activity watch. Fitness monitoring lets you customize daily activities for optimal performance, while access to apps, built-in GPS and music-streaming capability enhance the watch's versatility. Sync this Fitbit Ionic activity watch to a smartphone to easily analyze your health data.Meet Fitbit Sense--the advanced smartwatch that helps you tune in to your body and guides you toward better health. Assess your heart for AFib right from your wrist, detect and manage stress, better understand your sleep quality and even keep an eye on patterns in your skin temperature. Plus, Sense unlocks a 6-month free trial of personalized guidance and advanced insights for new Fitbit Premium users.**New Premium users only. Must activate with device. Valid payment method required. Free trial must be activated within 60 days of device activation. Cancel before free trial ends to avoid subscription fees.
Top Features
  • Start dynamic, personalized workouts on your wrist with step by step coaching
  • Store and play 300 plus songs or download stations from Pandora or playlists from Deezer
  • Use built in GPS to track pace, distance & routes and get pure, pulse continuous heart rate tracking & real time zones
  • Access your favorite apps for sports, weather & more and make payments on the go with a built in NFC chip; works with Bluetooth headphones
  • Track runs, swims (Fitbit ionic is water resistant to 50 meters), rides, workouts, all day activity and sleep with 4 plus day battery life (varies with use & other factors)
  • Package includes both large and small size bands for the perfect, comfortable fit for all day & all night wear
  • Fitbit does not guarantee the quality or authenticity of products purchased from non-authorized resellers on amazon, and they are not eligible for warranty/replacement
  • Authorized Fitbit retailers: heart rate monitors USA and clever training
  • Durable screen: corning gorilla glass 3 is tough and damage resistant
  • Increased pixels and amplified brightness up to 1000 nits
  • EDA Scan app detects electrodermal activity which may indicate your body's response to stress and a built-in skin temperature sensor logs yours each night so you can see when it varies
  • The Fitbit ECG app has received FDA clearance and will be available in the U.S. in October. The Fitbit ECG app is only available in select countries. Not intended for use by people under 22 years old. See fitbit.com/ecg for additional details.
  • An on-wrist skin temperature sensor tracks yours each night so you can see how it varies
  • Free 6-month Fitbit Premium trial for new Premium users (Free trial may only be activated with device activation & within 60 days of device activation. Valid payment method required. New users only. Cancel before free trial ends to avoid subscription fees)
  • High & low heart rate notifications alert you if yours seems above or below your average
  • Battery lasts 6+ days—plus, fast charging gives you a full day’s charge in just 12 minutes (Varies with use and other factors; up to 12 hours with continuous GPS)
  • Use built-in GPS during runs, hikes, rides and more to see pace & distance without your phone
  • Use your voice with Amazon Alexa Built-in to check the weather, set reminders, control smart home appliances and more from your watch (Voice assistant availability and features may vary)

Reviews

Walmart Rating4.6667 (out of 3 reviews)
BestBuy Rating4.3 (out of 3010 reviews)2.2 (out of 5 reviews)
Latest Reviews

Ionic
Rating: 5
I love my Fitbit! This is a replacement for an Ionic I thought I lost. But, I found it and now my husband has one. I also teach aqua yoga and aqua aerobics and the Ionic keeps on working.
by Mona on 2020-04-21T17:00:00

Fitbit Ionic
Rating: 5
The Fitbit is perfect Band new comes with Original packaging and works great no complaints The features are great
by Sonia on 2019-11-06T16:00:00

Watch is attractive - has the features I wanted
Rating: 5
When I plugged it in to charge - it started charging but half way through charging it stopped - it looked like it was dead and I almost returned it. I tried rebooting it by holding the Back button and lower button on the right side until it responded and that did the trick. The setup was simple and easy. The watch is now working without any issues.
by cloe on 2020-07-16T17:00:00

Ionic
Rating: 5
Very nice tracker, looks professional so works for wearing at work
by Patrick on 2020-07-28T17:00:00

Good watch
Rating: 4
Watch works great. I had one since 12/ 25/ 2018, unfortunately it stopped working in March of 2019. I purchased another one because it was so easy to use. I couldn't do without it. I love this watch!
by charles on 2020-04-17T17:00:00

WORST BIRTHDAY PRESENT EVER
Rating: 1
bought it for my husband's birthday, he's worn it the last 4 months, and twice it has died but it came back to use. It died 2 days ago and now it won't light up at all, not even hooked to charger. I have tried to contact fitbit warranty and Nothing.
by Marlys on 2020-09-18T17:00:00

Not built to last
Rating: 1
The screen fell off my Ionic a few months after it was out of warranty. I contacted Fitbit and was offered a 25% discount on a new device. Too expensive to fall apart!
by DB on 2019-08-28T17:00:00

Too good to be true
Rating: 1
There is a reason this Fitbit is drastically cheaper than anywhere else... it is a model made for Asian markets and possibly old stock. The battery on a full charge lasts 4-5 hours not the 7 days advertised by Fitbit. I have been working with Fitbit for weeks to get a new one with no luck. I will be returning it to Walmart.
by thomas on 2020-04-25T17:00:00

water
Rating: 1
I have been threw 3 fitbit ionic in 18 months do to the fact water has got inside of them. The company will not hold up there word on it about it can be used in the pool. waste of money if you are trying to track swim laps.
by stefany1203 on 2020-08-08T17:00:00

Defective Watch
Rating: 1
Received purchase quickly but watch is defective and will be returning. The watch does not turn on and packaging was not for a 'new' watch. We contacted Fitbit to confirm that there was nothing we could do to get the watch running. I recommend Fitbit but not from an unknown third party.
by Lawrence on 2020-07-23T17:00:00

No reviews yet.

All Features

Manufacturer's Warranty - Parts1 yearLimited 1 Year
RechargeableYesYes
Case Thickness0.5 inches
Display ScreenYesYes
Wi-Fi CompatibilityWireless BWireless B
Operating System CompatibilityAndroidAndroid
Replaceable BatteryYes
Color DisplayYesYes
Model NumberFB503WTGYFB512GLWT
Internal Memory Capacity4 gigabytes
Maximum Depth of Water Resistance164 feet164 feet
Clasp TypeBuckle
Global PositioningGPSGPS
Product Weight1.8 ounces
Battery Capacity10 milliampere hours
Band ColorSilverLunar White
Vibration AlertYesYes
Band TypeSports
Bluetooth VersionOther
Product Height0.5 inches
Additional Accessories IncludedCharging cable; 2 wristbands (S+L)
Product Depth10.1 inches
Battery TypeOther
Color CategorySilverWhite
Form FactorWristwatchWristwatch
Water ResistantYesYes
Metrics MeasuredActivity vs. inactivityHeart rate
Case ShapeOther
Band MaterialOther
NFC TechnologyYesYes
Screen Size29 millimeters
Built-In MicrophoneNo
Backlit DisplayYesYes
Bluetooth EnabledYesYes
Dust ResistantYes
SensorsAccelerometerAccelerometer
Operating SystemOther
Music PlayerYes
Adjustable Band LengthYes
Shock ResistantNo
Charging Interface(s)NoneUSB
Multi-Sport TrackingYesYes
Alert TypeVibrationVibration
Data Plan RequiredNo
Mobile Payment Service SupportedFitbit PayFitbit Pay
Display TypeLCDAMOLED
Usage Time96 hours
Maximum Wrist Size8.1 inches
Customizable Watch FacesYesYes
Band Width1.24 millimeters
Battery SizeNot Available
Touch ScreenYesYes
Case Width1.15 inches
Minimum Wrist Size5.5 inches
SeriesIonicFitbit Sense
Case MaterialAluminumStainless steel
Adjustable BrightnessYes
Case Back MaterialAluminum
Model FamilyFitbit IonicFitbit Sense
Manufacturer's Warranty - Labor1 yearLimited 1 Year
Product TypeSmartwatchSmartwatch
releaseSep 2017Sep 2020
ColorBlue gray/silver graySoft Gold
Product NameIonic SmartwatchSense Advanced Health & Fitness Smartwatch
BrandFitbitFitbit
Web ID11481506
MovementSmart Watch
CaseSquare, Soft Gold Aluminum Alloy, 39mm
StrapLunar White Silicone with Stainless Steel Buckle Closure
Clock DisplayYes
Mobile NotificationsYes
Silent AlarmYes
Screen MaterialCorning Gorilla Glass 3
Internal CarrierNot Applicable
Voice Assistant Built-inAmazon Alexa

More Information

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