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Longest battery life

Top 30 models by battery life (smartwatch mode), from our catalog.

updated Oct 21, 2026models from 2024 on
Garmin Instinct 3 50mm Solar
#1

Garmin Instinct 3 50mm Solar

40 days
1.56″40 days10 ATM58 g
See specs
2 Garmin Instinct 3 50mm Solar Tactical Edition
Garmin · 2025
Instinct 3 50mm Solar Tactical Edition
1.56″40 days10 ATM58 g
40 days
6.9
3 Garmin Enduro 4
Garmin · 2026
Enduro 4
1.4″36 days10 ATM66 g
36 days
8.2
4 Garmin Enduro 3
Garmin · 2024
Enduro 3
1.4″36 days10 ATM63 g
36 days
8.4
5 Coros Vertix 2S
Coros · 2024
Vertix 2S
1.4″36 days10 ATM87 g
36 days
8.4
6 Honor Watch 6
Honor · 2026
Watch 6
1.46″35 days5 ATM41 g
35 days
8.1
7 Garmin Fenix 9 Pro 51mm
Garmin · 2026
Fenix 9 Pro 51mm
1.5″31 days10 ATM99 g
31 days
8.8
8 Garmin Fenix 9 Pro inReach 51mm
Garmin · 2026
Fenix 9 Pro inReach 51mm
1.5″31 days10 ATM99 g
31 days
8.8
9 Withings ScanWatch Nova
Withings · 2024
ScanWatch Nova
30 days10 ATM129 g
30 days
9.2
10 Garmin Fenix 9 Pro Solar 51mm
Garmin · 2026
Fenix 9 Pro Solar 51mm
1.4″30 days10 ATM102 g
30 days
7.3
11 Garmin Fenix 9 Pro inReach Solar 51mm
Garmin · 2026
Fenix 9 Pro inReach Solar 51mm
1.4″30 days10 ATM102 g
30 days
7.3
12 Garmin Tactix 8 51mm Solar
Garmin · 2025
Tactix 8 51mm Solar
1.4″30 days10 ATM95 g
30 days
7.7
13 Garmin Tactix 8 51mm Solar Elite
Garmin · 2025
Tactix 8 51mm Solar Elite
1.4″30 days10 ATM95 g
30 days
7.7
14 Garmin Fenix 8 51mm Solar
Garmin · 2024
Fenix 8 51mm Solar
1.4″30 days10 ATM95 g
30 days
7.5
15 Amazfit Cheetah 2 Ultra
Amazfit · 2026
Cheetah 2 Ultra
1.5″30 days5 ATM52 g
30 days
9.4
16 Amazfit Balance Ultra
Amazfit · 2026
Balance Ultra
1.5″30 days10 ATM57 g
30 days
9.7
17 Amazfit T-Rex Ultra 2
Amazfit · 2026
T-Rex Ultra 2
1.5″30 days10 ATM89.2 g
30 days
9.3
18 Garmin Fenix 9 51mm
Garmin · 2026
Fenix 9 51mm
1.4″29 days10 ATM91 g
29 days
8.6
19 Garmin Tactix 8 51mm AMOLED
Garmin · 2025
Tactix 8 51mm AMOLED
1.4″29 days10 ATM92 g
29 days
9.2
20 Garmin Tactix 8 51mm AMOLED Cerakote Coating
Garmin · 2025
Tactix 8 51mm AMOLED Cerakote Coating
1.4″29 days10 ATM94 g
29 days
9.2
21 Garmin Fenix 8 51mm AMOLED
Garmin · 2024
Fenix 8 51mm AMOLED
1.4″29 days10 ATM102 g
29 days
8.9
22 Garmin Quatix 8 51mm AMOLED
Garmin · 2025
Quatix 8 51mm AMOLED
1.4″29 days10 ATM92 g
29 days
8.9
23 Garmin Instinct 3 45mm Solar
Garmin · 2025
Instinct 3 45mm Solar
1.27″28 days10 ATM52 g
28 days
5.6
24 Garmin Instinct 3 45mm Solar Tactical Edition
Garmin · 2025
Instinct 3 45mm Solar Tactical Edition
1.27″28 days10 ATM52 g
28 days
5.6
25 Garmin Fenix 8 Pro 51mm AMOLED
Garmin · 2025
Fenix 8 Pro 51mm AMOLED
1.4″27 days10 ATM90 g
27 days
8.8
26 Amazfit T-Rex 3
Amazfit · 2024
T-Rex 3
1.5″27 days10 ATM68.3 g
27 days
8.4
27 Garmin D2 Mach 2 51mm
Garmin · 2025
D2 Mach 2 51mm
1.4″26 days10 ATM92 g
26 days
8.9
28 Amazfit T-Rex 3 Pro
Amazfit · 2025
T-Rex 3 Pro
1.5″25 days10 ATM74.5 g
25 days
9.6
29 Amazfit T-Rex Dual Solar
Amazfit · 2026
T-Rex Dual Solar
1.32″25 days10 ATM69 g
25 days
9.4
30 Amazfit Active Max
Amazfit · 2025
Active Max
1.5″25 days5 ATM39.5 g
25 days
9.6

Close contests in this ranking

Garmin Instinct 3 50mm SolarvsGarmin Instinct 3 50mm Solar Tactical EditionGarmin Instinct 3 50mm SolarvsGarmin Instinct 3 50mm Solar Tactical Edition6.96.9Garmin Instinct 3 50mm Solar Tactical EditionvsGarmin Enduro 4Garmin Instinct 3 50mm Solar Tactical EditionvsGarmin Enduro 46.98.2Garmin Enduro 4vsGarmin Enduro 3Garmin Enduro 4vsGarmin Enduro 38.28.4Garmin Enduro 3vsCoros Vertix 2SGarmin Enduro 3vsCoros Vertix 2S8.48.4Coros Vertix 2SvsHonor Watch 6Coros Vertix 2SvsHonor Watch 68.48.1Honor Watch 6vsGarmin Fenix 9 Pro 51mmHonor Watch 6vsGarmin Fenix 9 Pro 51mm8.18.8

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