What bluetooth heart rate monitors work with this timer? I would like to use a chest strap for better accuracy

The Flex Timer app can integrate with any heart rate monitor that supports the bluetooth heart rate profile. This open standard allows any app to integrate with any heart rate monitor without tying you in to a vendor specific application. Unfortunately, some companies do not follow this standard and instead use a proprietary protocol so that only their apps or their approved partner's apps can integrate with their technology. The following cheststrap heart rate monitors will work with the Flex Timer: Wahoo Fitness - Tickr Polar - H7 Coospo - H8 Kurtkinetic - Bluetooth Smart Heartrate Strap The following wristband/armband heart rate monitors will work with the Flex Timer: Mio Global - Link Scosche - Rhythm+

While using the app, does it disable the phone's "sleep" or lock mode? If not does the app still function while phone is locked?

The app is used to program and initiate the external timer. Once you have started the timer, the phone is no longer necessary and can be disconnected, put to sleep or locked. The timer will continue to run even if the phone is locked or sleeps.

Is it android compatible?

Yes. It works with both Android and iOS devices that have Bluetooth Low Energy (which is most modern devices).

does the timer count both up and down?

Yes, it has standard, round, interval, tabata , EMOM, timer and some customizable options.

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Flex Timer - Home Edition

Product ID: 262198804

Details

Brand
GymNext
Colour
2.3" Blue/Red
Item weight
1.36 Kilograms
Material
Aluminum
Product dimensions
5.6D x 33W x

📱Bluetooth app control

🔊Audio sync with music

⏱️11 versatile timer modes

₺17177

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Description

🔥 Elevate every rep with the timer that moves as fast as you do ⏱️

MULTI UNIT SYNCHRONIZATION - Link multiple timers wirelessly for team training or multi-room gyms.
SEAMLESS BLUETOOTH CONTROL - Effortlessly set and manage workouts via a sleek mobile app with 100+ ft range.
ULTIMATE TIMER FLEXIBILITY - 11 customizable modes from Tabata to EMOM to fit every workout style.
AUDIO INTEGRATED MOTIVATION - Sync interval cues with your Bluetooth speakers for uninterrupted workout flow.
FUTURE PROOF USER CENTRIC - Regular app updates plus Apple Watch/Android Gear integration keep you ahead.

The GymNext Flex Timer - Home Edition is a professional-grade interval timer featuring 11 main modes, a crystal-clear LED display, and Bluetooth app control for iOS and Android. It offers deep customization, audio cue syncing with music, multi-timer wireless linking, and compatibility with smartwatches. Designed for home gyms and commercial spaces alike, it delivers precision timing and seamless user experience to optimize every workout.

Specifications

ASIN	B010DZYJ2G
Batteries required	No
Best Sellers Rank	#9,053 in Sporting Goods ( See Top 100 in Sporting Goods ) #12 in Stopwatches
Customer Reviews	4.0 4.0 out of 5 stars (579)
Date First Available	26 July 2016
Included components	Timer, Power Supply, Mounting Brackets
Item Weight	1.36 Kilograms
Product Dimensions	33.02 x 5.08 x 12.7 cm; 1.36 kg
Specification met	certified frustration-free

Reviews

M**S

At first it was great: Very clear, the app had numerous settings and options and perfect for the home gym or even a gym . However, the app has stopped connecting with the timer. I have done all the trouble shooting options multiple times: permissions, blue tooth, location, factory reset, re-installed etc. Even tried 2 different phones - Still will not connect. I really can't be bothered to waste anymore time (no pun intended) on this. The return window expired 16 months ago and they are out of stock. Very poor and would not buy again anyway. One for the scrap heap!

31.07.2020

M**E

Chi usa questi timer da palestra, sa l'odio nel settarli col telecomando... Questo si setta in un attimo tramite l'app, ha anche dei timer già preimpostati. Se il telefono è collegato alle casse, gestirà anche gli audio del countdown e la musica, volendo si può anche "proiettare" su un monitor esterno tramite mirroring. Il costo è un po' più alto di altri prodotti, ma secondo me li vale tutti

20.07.2023

B**S

Excellente luminosité et très lisible. Très bien de connecter le tel avec une appli complète bien que parfois pas très ergonomique. Mieux en tout cas que des télécommandes qu’on perd ou avec piles à changer. Prix assez conséquent toutefois même si on sent la qualité.

6.01.2025

S**H

We love our gym timer. It works great. The app is very easy to set the workout of your choice. I highly recommend this product. I have also engaged GumNext customer service and was pleasantly surprised by how fast they responded to my question. It left a positive impression on me and as a result I decided to write this review.

8.12.2025

T**L

Anzahl der Montagemöglichkeiten super. Ein eingebauter Akku wäre gut.

4.01.2024

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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₺17177

Duties & taxes included

In stock

Sold byAmazon TurkeyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Turkey.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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