Best temperature control mug-Help me decide to choose

I researched the best temperature-controlled mug as my coffee always gets cold too fast while I’m working from home. i have been experiencing drinks losing heat in under 30 minutes no matter what.i went through reviews from trusted sources like Wirecutter and TechRadar and after comparing many options these two kept coming up as the top choices

Nextmug - Temperature-Controlled mug

https://www.amazon.com/Nextmug-Temperature-Controlled-Self-Heating-Coffee-Mug-Black/dp/B0B6JTX6NB/?th=1

Keeps drinks at your set temp (up to 150°F) for hours with a simple dial control and no app needed.

Battery lasts about 3 hours on high, includes a docking coaster for all-day charging at your desk.

Ember Temperature Control Smart Mug

https://www.amazon.com/Ember-Temperature-Control-Smart-Battery/dp/B09FFXD5WT/?th=1

App lets you set precise temp (120°F–145°F) and track drink readiness from your phone.

Battery lasts ~1.5 hours off the coaster, with LED display and sleek design for daily use.

However i am having trouble deciding which one would be better for me and i would love to get your expert advice and hoping maybe some coffee enthusiasts or tech gadget users on this forum can also share their advice.i usually drink 2 3 cups a day at my desk. Any suggestions or advice would be appreciated.Thanks in advance

Sorry if I’m misunderstanding what you’re going for here, but this seems like a complicated, and expensive, solution to a simple problem. I’ve had great success with cups and drink holders from Yeti, Corkcicle, and Stanley, that all hold a good temperature longer than the drink itself lasts. Hot or cold. No cord nor fuss nor muss.

Sorry again if I’m not on your same page.