T-Rex 3

Amazfit

T-Rex 3

72 positive 0 neutral 52 negative

Based on 124 Reddit mentions

$251.99

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Reddit mentions

Original Reddit posts and comments behind this analysis.

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Amazfit Active 3 Premium smartwatch is official

Probably the most unneccesary release I've seen from Amazfit, alognside the T-Rex Ultra 2. They haven't been able to keep up with the Helio Strap demand, still unable to sell a single replacement band for the Helio Strap, the calories algorithm is still super high, sports like swimming are still lac

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Few-Cheesecake7412 in r/amazfit

February 26, 2026 1:30 PM

17

Amazfit Trex Ultra 2 Review

I totally agree that Amazfit's algorythms do not filter noise as fine as Garmin watches. In the T-Rex 3 Pro I have cadence lock and in the Ultra 2 I'm seeing the HR accuracy is not as good as it should

oa_i in r/amazfit

March 29, 2026 7:47 AM

3

New firmware update for T-Rex 3 Pro

I got your point. I also was worried about how cheaper watches like Balance 2 and T-Rex 3 got(at the time when T-Rex 3 Pro was their most expensive watch) all the software especially route planning which was special for T-Rex 3 Pro as the same as Golf app for Balance 2(the Golf app still is not port

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splen0 in r/amazfit

March 21, 2026 9:24 AM

2

Loop megathread

From the numerous complaints I've seen on the amazfit subreddit, it doesn't even detect awakenings when you get up to use the bathroom. https://www.reddit.com/r/amazfit/comments/1nf3xrk/helio_strap_doesnt_detect_wake_time/ Sitting down causing naps: https://www.reddit.com/r/amazfit/comments/1pjju3q/heli

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Meekajahama in r/Polarfitness

December 16, 2025 11:15 AM

1

Missing button and things for next Balance

The thing about the HR goes further u/gamefan5 . I returned both the T-Rex 3 Pro 48mm and the 44mm for the heart rate issues because I didn't know if it was a software issue or if I had faulty devices. Then I bought the Balance 2 XT, that was working perfectly with firmware 2.14 and then the Balance

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oa_i in r/amazfit

February 8, 2026 9:19 PM

1

Is the t Rex 3 good for swimming? Can we upload training plans?

Amazfit T REX 3 PRO. Horrivel para NATACAO PISCINA. NAO marca tempo da sua passagem e nao marca a frequencia cardiaca zona do treino. NAO RECOMENDO caso queira melhorar seu tempo e descobrir a zona de esforco.

Additional_Ear_1782 in r/amazfit

April 8, 2026 1:08 PM

1

Is the t Rex 3 good for swimming? Can we upload training plans?

Amazfit T REX 3 PRO. Horrivel para NATACAO PISCINA. NAO marca tempo da sua passagem e nao marca a frequencia cardiaca zona do treino. NAO RECOMENDO caso queira melhorar seu tempo e descobrir a zona de esforco. tinha garmin fenix 6s safira carbon que saudade apesar do preco kkk (pifou a bateria pq ca

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Additional_Ear_1782 in r/amazfit

April 8, 2026 1:10 PM

1

Is the t Rex 3 good for swimming? Can we upload training plans?

Amazfit T REX 3 PRO. Horrivel para NATACAO PISCINA. NAO marca tempo da sua passagem e nao marca a frequencia cardiaca zona do treino. NAO RECOMENDO caso queira melhorar seu tempo e descobrir a zona de esforco.

Additional_Ear_1782 in r/amazfit

April 8, 2026 1:10 PM

1

Espero que vocês leiam esse relato antes de comprar qualquer coisa da AMAZFIT.

Amazfit T REX 3 PRO. Horrivel para NATACAO PISCINA. NAO marca tempo da sua passagem e nao marca a frequencia cardiaca zona do treino. NAO RECOMENDO caso queira melhorar seu tempo e descobrir a zona de esforco. NAO marca volta + distancia + tempo + ritmo + fc. Que saudade do meu Garmin Fenix 6s safir

...

Additional_Ear_1782 in r/amazfit

April 8, 2026 1:19 PM

1

Espero que vocês leiam esse relato antes de comprar qualquer coisa da AMAZFIT.

Amazfit T REX 3 PRO. Horrivel para NATACAO PISCINA. NAO marca tempo da sua passagem e nao marca a frequencia cardiaca zona do treino. NAO RECOMENDO caso queira melhorar seu tempo e descobrir a zona de esforco. NAO marca volta + distancia + tempo + ritmo + fc. Que saudade do meu Garmin Fenix 6s safir

...

Additional_Ear_1782 in r/amazfit

April 8, 2026 1:20 PM

1

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