SKU: 31550762636

Fitbit Flex Wireless Wristband with Sleep Function, Black

Sale price$71.99 Regular price$79.99
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Fitbit Flex Wireless Wristband with Sleep Function, BlackColor: Slate Size: Two wristbands included, Large (6. 5 7. 9 in) and Small (5. 5 6. 5 in) Product Description Fitbit FB401SL Flex Wireless Activity and Sleep Tracker Wristband From the Manufacturer Certain features like Auto Sleep Tracking and SmartTrack may be disabled when using this accessory. Classic accessory bands are the recommended accessory for high intensity workouts and sleep tracking. Do not wear the Flex 2 Pendant accessory while sleeping

Color:Slate |  Size:Two wristbands included, Large (6.5 - 7.9 in) and Small (5.5 - 6.5 in)

Product Description

Fitbit FB401SL Flex Wireless Activity and Sleep Tracker Wristband

From the Manufacturer

• Certain features like Auto Sleep Tracking and SmartTrack may be disabled when using this accessory. Classic accessory bands are the recommended accessory for high intensity workouts and sleep tracking. • Do not wear the Flex 2 Pendant accessory while sleeping or during high intensity activity, as doing so could create a choking hazard. • Flex 2 Pendant accessories contain magnets. Magnets may interfere with pacemakers, defibrillators, or other medical devices. Consult your physician and the manufacturer of your medical device before using to determine if these accessories are safe for you. If the accessories may be interfering with your pacemaker, defibrillator, or other medical device, do not wear the accessories.

See all Product description
  • One syncs automatically and wirelessly to tablets, computers and 150+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology. Syncing to computers requires Internet connection and USB port. Syncing to mobile devices requires Bluetooth and Internet connection. Syncing range: 20 feet. Call notifications via Bluetooth 4.0
  • Water Resistance: Charge has been tested up to 1 ATM meaning it is sweat, rain and splash proof. However, the device is not swim proof. We also recommend taking Charge off before showering because, as with any wearable device, it’s best for your skin if the band stays dry and clean
  • Warning: Do not use if you have a pacemaker or other internal, or implanted medical device. Not intended for use by children under 13. Always consult your physician. Slippery when wet
  • We recommend charging your device every few days to ensure you are always tracking. Charge time: One to two hours. Battery life: up to 7 - 10 days. Battery type: Lithium-polymer
  • Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31550762636

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4.3 ★★★★★
Based on 27 reviews
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Verified Purchase
Commander Salamander
Natrona Heights, US
★★★★★ 5
Basically, the perfect t-shirt.
Size: 5X-Large, Color: Black
Love these things... convenient, surprisingly durable, fit well. Basically, the perfect t-shirt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
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Georgia in Denver
Massapequa, US
★★★★★ 5
Classic look, great feel and great price.
Color: Black, Size: X-Large
Super comfy and casual, but classy enough that it can be worn out. I find this shirt extremely comfortable, it is a classic look and is very flattering. I wear a size 14 and the XL is loose but not baggy. It washes well, does not wrinkle if I get it out of the dryer and folded in appropriate time, and the material is a good weight for the cost of the shirt. I would likely buy again as this is a great summer staple.
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Reviewed in the United States on May 2, 2026
S
Verified Purchase
susan
Cuba, US
★★★★★ 5
Comfortable, pretty shirt.
Color: Black, Size: Large, Color: Black, Size: Large
Looks great, soft, made well. I am 194 lbs, 5'6" , bust 34", waist 33" I ordered large and fits good. Stretch 68% polyester, 27% rayon & 5% elastane. Pretty shirt I recommend.
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Reviewed in the United States on May 15, 2026
T
Verified Purchase
Toniann...
Fort Morgan, US
★★★★★ 4
Nice but buttons are small
Color: Blue, Size: Large
Nice fit and comfortable 👌 but the buttons look larger in the photo
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Reviewed in the United States on May 10, 2026
A
Verified Purchase
a customer
Dallas, US
★★★★★ 5
Runs true to size and well made!
Color: Black, Size: Medium
I am very pleased with the size and cut of this top. I hesitated on sizing (at 5'1" and 105 lb) because I like a looser fit and am sometimes given different size recommendations. Many times the tops are too large and must be altered or simply passed on to thrift stores. This shirt in a medium is perfect in its fit, flows nicely. The neckline is not too low, but more like a shirt with a couple of top buttons unbuttoned- no gap. The sleeve length is good for me as my shoulders are a bit narrow. (I checked and no way to remove the stitches that hold the sleeve into a cuff. They are deeply embedded into this soft opaque fabric that has some stretch. (Even with the best of seam rippers and sharp eyesight!)I think the rolled cuff is cute! Top drapes well and is a great length for jeans or shorts- dressy casual wear, with its perfect fabric thickness. I really like the black color. I would not wear it with leggings because of the length, but jeggings are great with it. The little contrasting buttons are a nice touch. Great value buy.
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Reviewed in the United States on May 5, 2026

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