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The Smallest Smartphones With The Best Battery Life (2021)

author Luis Silva (Updated on: March 2021)

The Smallest Smartphones With The Best Battery Life


This is the international top 10 list. Click here to check out the US version.

Size isn't everything when it comes to smartphones. But the battery life, on the other hand, can really ruin your day if it runs out before you get the chance to charge it.

The thing is, small devices are getting hard to find, and one with a big battery, it's even harder.

Fortunately, they're all here, so you can easily pick your next smartphone. And because there's a top 10 list for every budget, if you're not planning to empty your wallet, I'm sure you'll find the one for you right there.

If you change your mind later on and decide to prioritize battery over size, then check the links below this list.

Tips: Prices marked with ! are from renewed/refurbished/carrier-locked phones. You can also find links to Amazon, eBay, Best Buy, and Walmart (and updated prices) in any comparison article.



Pick your budget:





 Top 10 



 Over $1000 

  • #4 SamsungSamsung Galaxy Note 20 Ultra (Snapdragon)Gal. Note 20 U.SD
    $1230    5.5

  • Quick Specs
    Year: 2020
    Snapdragon 865+
    164x77 6.46x3.03
    6.9" 1440x3088
    Full Glass 128GB+
    Gorilla Glass V
    108+12+12Mp4x
    4500mAh 25+15w
    full specs

  • +Pros/-Cons
    +Performance
    +Always-On-Disp.
    +Cameras
    +Battery Life
    +Wireless Charg.
    +Glass Protection
    -Weight
    -3.5mm Jack
    -Price

  • samsung galaxy note 20 ultra (exynos) vs samsung galaxy note 20 ultra (snapdragon)Samsung
    Gal. Note 20 U.EX
    vs
    Samsung
    Gal. Note 20 U.SD
  • #5 SamsungSamsung Galaxy Note 20 Ultra (Exynos)Gal. Note 20 U.EX
    $1010    5.4

  • Quick Specs
    Year: 2020
    Exynos 990
    164x77 6.46x3.03
    6.9" 1440x3088
    Full Glass 256GB+
    Gorilla Glass V
    108+12+12Mp4x
    4500mAh 25+15w
    full specs

  • +Pros/-Cons
    +Performance
    +Always-On-Disp.
    +Cameras
    +Battery Life
    +Wireless Charg.
    +Storage
    -Weight
    -3.5mm Jack
    -Price

  • samsung galaxy note 20 ultra (exynos) vs samsung galaxy note 20 ultra (snapdragon)Samsung
    Gal. Note 20 U.EX
    vs
    Samsung
    Gal. Note 20 U.SD
  • #7 SamsungSamsung Galaxy S20 Ultra (Snapdragon)Galaxy S20 U.SD
    $1399    5.1

  • Quick Specs
    Year: 2020
    Snapdragon 855
    166x76 6.54x2.99
    6.9" 1440x3200
    Full Glass 128GB+
    Gorilla Glass 6
    108+48+12Mp4x
    5000mAh 45+15w
    full specs

  • +Pros/-Cons
    +Performance
    +Always-On-Disp.
    +Cameras
    +Battery Life
    +Wireless Charg.
    +Glass Protection
    -Weight
    -3.5mm Jack
    -Price

  • samsung galaxy s20 ultra (exynos) vs samsung galaxy s20 ultra (snapdragon)Samsung
    Galaxy S20 U.EX
    vs
    Samsung
    Galaxy S20 U.SD


 Under $1000 



 Under $700 

  • #4 SamsungSamsung Galaxy S10 (Snapdragon)Galaxy S10 SD
    $550    7.5

  • Quick Specs
    Year: 2019
    Snapdragon 855
    149x70 5.87x2.76
    6.1" 1440x3040
    Full Glass 128GB+
    Gorilla Glass 6
    12+12+16Mp2x
    3400mAh 15+15w
    full specs

  • +Pros/-Cons
    +Performance
    +Always-On-Disp.
    +Cameras
    +Wireless Charg.
    +Glass Protection

  • samsung galaxy s10 (exynos) vs samsung galaxy s10 (snapdragon)Samsung
    Galaxy S10 EX
    vs
    Samsung
    Galaxy S10 SD
  • #6 SamsungSamsung Galaxy S20 (Snapdragon)Galaxy S20 SD
    $609    6.9

  • Quick Specs
    Year: 2020
    Snapdragon 865
    151x69 5.95x2.72
    6.2" 1440x3200
    Full Glass 128GB+
    Gorilla Glass 6
    12+64+12Mp
    4000mAh 25+15w
    full specs

  • +Pros/-Cons
    +Performance
    +Always-On-Disp.
    +Cameras
    +Wireless Charg.
    +Glass Protection
    -3.5mm Jack
    -Price

  • samsung galaxy s20 (exynos) vs samsung galaxy s20 (snapdragon)Samsung
    Galaxy S20 EX
    vs
    Samsung
    Galaxy S20 SD
  • #7 SamsungSamsung Galaxy S20 (Exynos)Galaxy S20 EX
    $669    6.8

  • Quick Specs
    Year: 2020
    Exynos 990
    151x69 5.95x2.72
    6.2" 1440x3200
    Full Glass 128GB+
    Gorilla Glass 6
    12+64+12Mp
    4000mAh 25+15w
    full specs

  • +Pros/-Cons
    +Performance
    +Always-On-Disp.
    +Cameras
    +Wireless Charg.
    +Glass Protection
    -3.5mm Jack
    -Price

  • samsung galaxy s20 (exynos) vs samsung galaxy s20 (snapdragon)Samsung
    Galaxy S20 EX
    vs
    Samsung
    Galaxy S20 SD


 Under $500 

  • #9 SamsungSamsung Galaxy S10 (Exynos)Galaxy S10 EX
    $433    7.2

  • Quick Specs
    Year: 2019
    Exynos 9820
    149x70 5.87x2.76
    6.1" 1440x3040
    Full Glass 128GB+
    Gorilla Glass 6
    12+12+16Mp2x
    3400mAh 15+15w
    full specs

  • +Pros/-Cons
    +Always-On-Disp.
    +Cameras
    +Wireless Charg.
    +Glass Protection

  • samsung galaxy s10 (exynos) vs samsung galaxy s10 (snapdragon)Samsung
    Galaxy S10 EX
    vs
    Samsung
    Galaxy S10 SD


 Under $400 

  • #8 SamsungSamsung Galaxy S10 Plus (Snapdragon)Galaxy S10+ SD
    $379    6.5

  • Quick Specs
    Year: 2019
    Snapdragon 855
    157x74 6.19x2.92
    6.4" 1440x3040
    Full Glass 128GB+
    Gorilla Glass 6
    12+12+16Mp2x
    4100mAh 15+15w
    full specs

  • +Pros/-Cons
    +Performance
    +Always-On-Disp.
    +Cameras
    +Battery Life
    +Wireless Charg.
    -Price

  • samsung galaxy s10 plus (exynos) vs samsung galaxy s10 plus (snapdragon)Samsung
    Galaxy S10+ EX
    vs
    Samsung
    Galaxy S10+ SD
  • #9 SamsungSamsung Galaxy M30sGalaxy M30s
    $300    6.4

  • Quick Specs
    Year: 2019
    Exynos 9611
    159x75 6.26x2.96
    6.4" 1080x2340
    Front Glass 64GB+
    No Glass Prot.
    48+8+5Mp
    6000mAh 15+0w
    full specs

  • +Pros/-Cons
    +Always-On-Disp.
    +Battery Life
    -Wireless Charg.
    -Weight
    -Glass Protection

  • samsung galaxy m30s vs xiaomi redmi note 8 proSamsung
    Galaxy M30s
    vs
    Xiaomi
    R.Note 8 Pro


 Under $300 

  • #2 SamsungSamsung Galaxy A40Galaxy A40
    $240    7.7

  • Quick Specs
    Year: 2019
    Exynos 7904
    144x69 5.67x2.72
    5.9" 1080x2340
    Front Glass 64GB+
    Gorilla Glass 3
    16+5Mp
    3100mAh 15+0w
    full specs

  • +Pros/-Cons
    -Always-On-Disp.
    -Wireless Charg.
    -Glass Protection

  • samsung galaxy a40 vs samsung galaxy a50Samsung
    Galaxy A40
    vs
    Samsung
    Galaxy A50
  • #3 XiaomiXiaomi Mi 9 SEMi 9 SE
    $250    7.7

  • Quick Specs
    Year: 2019
    Snapdragon 712
    147x70 5.79x2.76
    5.9" 1080x2340
    Full Glass 64GB
    Gorilla Glass 5
    48+8+13Mp2x
    3070mAh 18+0w
    full specs

  • +Pros/-Cons
    +Always-On-Disp.
    +Cameras
    -Wireless Charg.
    -MicroSD Slot
    -3.5mm Jack

  • xiaomi mi 9 vs xiaomi mi 9 seXiaomi
    Mi 9
    vs
    Xiaomi
    Mi 9 SE
  • #5 XiaomiXiaomi Pocophone F1Pocophone F1
    $250    6.6

  • Quick Specs
    Year: 2018
    Snapdragon 845
    155x75 6.11x2.96
    6.1" 1080x2246
    Front Glass 64GB+
    Gorilla Glass
    12+5Mp
    4000mAh 18+0w
    full specs

  • +Pros/-Cons
    -AMOLED
    -Always-On-Disp.
    -Wireless Charg.
    -Weight

  • xiaomi pocophone f1 vs xiaomi redmi note 8 proXiaomi
    Pocophone F1
    vs
    Xiaomi
    R.Note 8 Pro
  • #6 XiaomiXiaomi Mi 8Mi 8
    $235    6.6

  • Quick Specs
    Year: 2018
    Snapdragon 845
    154x74 6.07x2.92
    6.2" 1080x2248
    Full Glass 64GB
    Gorilla Glass 5
    12+12Mp2x
    3400mAh 18+0w
    full specs

  • +Pros/-Cons
    +Always-On-Disp.
    +Cameras
    -Wireless Charg.
    -MicroSD Slot
    -3.5mm Jack

  • xiaomi mi 8 vs xiaomi mi 9Xiaomi
    Mi 8
    vs
    Xiaomi
    Mi 9
  • #9 HuaweiHuawei Mate 20Mate 20
    $285    6.4

  • Quick Specs
    Year: 2018
    Hisilicon Kirin 980
    158x77 6.23x3.03
    6.5" 1080x2244
    Full Glass 64GB+
    No Glass Prot.
    12+8+16Mp2x
    4000mAh 22+0w
    full specs

  • +Pros/-Cons
    +Always-On-Disp.
    +Cameras
    +Battery Life
    -AMOLED
    -Wireless Charg.
    -Weight
    -Glass Protection

  • huawei mate 20 vs huawei mate 20 proHuawei
    Mate 20
    vs
    Huawei
    Mate 20 Pro


 Under $200 

  • #3 RealmeRealme 5 Pro5 Pro
    $179    6.5

  • Quick Specs
    Year: 2019
    Snapdragon 712
    157x74 6.19x2.92
    6.3" 1080x2340
    Front Glass 128G+
    Gorilla Glass 3
    48+8+2+2Mp
    4035mAh 20+0w
    full specs

  • +Pros/-Cons
    +Always-On-Disp.
    +Cameras
    +Battery Life
    +Price
    -AMOLED
    -Wireless Charg.
    -Weight
    -Glass Protection

  • realme 5 pro vs xiaomi redmi note 8 proRealme
    5 Pro
    vs
    Xiaomi
    R.Note 8 Pro
  • #5 XiaomiXiaomi Redmi Note 7Redmi Note 7
    $140    6.2

  • Quick Specs
    Year: 2019
    Snapdragon 660
    159x75 6.26x2.96
    6.3" 1080x2340
    Full Glass 64GB+
    Gorilla Glass 5
    48+5Mp
    4000mAh 18+0w
    full specs

  • +Pros/-Cons
    +Battery Life
    +Price
    -AMOLED
    -Always-On-Disp.
    -Wireless Charg.
    -Weight

  • xiaomi redmi note 7 vs xiaomi redmi note 8 proXiaomi
    Redmi Note 7
    vs
    Xiaomi
    R.Note 8 Pro


Related articles:

The Top Smartphones With The Best Battery and Smallest Sizes



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