OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Smartwatches Methodology v3.0
Smartwatches Methodology v3.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Smartwatches Methodology v3.0: the technical score from the specifications is the base, and independent expert and video reviews (up to ±0.5 points), owner opinions (up to ±0.3) and best-of lists (up to +0.3) move it up or down.
Explore Smartwatches Methodology v3.0

Kospet Tank M4C review: 127 specs compared

Avg. price:~£?Screen size:1.96 inchBattery life:16 daysDisplay type:AMOLED

Kospet Tank M4C Review: Compare 127 technical specifications and 10 expert and video reviews to see how this product ranks in the Smartwatches category and whether it is worth buying.

Kospet Tank M4C
7.6/10

Overall score

Score
7.6/ 10
✕
What it is
Our main score for this model, 1–10. It combines specs, best-of lists, expert reviews and owners.
How we count it
Parts: Technical score 35%, List score 30%, Reviews score 25%, Sentiment score 10%
Marks: Each part gets a mark out of 10. For reviews, lists and owners, a typical model in this category gets about 8 and the best one gets 10.
No data yet: A part with no data shows "?". It counts as the mark of a weaker model in this category (4 in 5 models with data score higher). This way, models with reviews, lists and owners usually come out ahead.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 70% of models
Score components

35%

7.7

Technical score

30%

?

List scoreNot enough data yet, so we use 7.5, the mark of a weaker model in this category

25%

8.0

Reviews score

10%

?

Sentiment scoreNot enough data yet, so we use 6.8, the mark of a weaker model in this category

â–²Better than 70% of smartwatches
?

Value for money

Value for money
✕
What it is
An indicator that combines the smartwatch's overall rating with its cost.
When it matters
When you are looking for a smartwatch with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

7.6

Overall score

30%

?

Price

Price not known yet
7.7

Technical score

Technical score
7.7/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 35% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 76% of models
Score components

24%

7.5

Health

21%

9.6

Fitness

16%

6.8

Battery

14%

7.5

Smart features

12%

6.4

Connectivity

9%

8.4

Display & Design

4%

5.7

Hardware

â–²Better than 76%
8.0

Reviews score

Reviews score
8.0/ 10
✕
What it is
Average grade from independent test sites, magazines and video reviewers, 1–10.
How we count it
Grades: Each review's own score is converted to 1–10; without one, we grade the review ourselves. Every review counts the same: written or video, short or full test.
Score: The average grade is 80% of the review mark; the number of reviews is the other 20% (1 review = 5, the typical number in this category = 8, the most-reviewed model = 10).
Enough data: With few reviews, the average grade is pulled toward the typical grade of this category. No reviews yet: 7.5 for now.
Share: Reviews count 25% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 51% of models

80%

8.2

Average grade

20%

7.4

Popularity

Grades by review (10)
10 videos, average 8.3/10. Reviews count 25% of the overall score.
User ratings collected online are not part of this score.
â–²Better than 51%
?

List score

List score
7.5/ 10
✕
What it is
How often independent test sites, magazines and video reviewers put this model in their best-of lists for this category.
How we count it
Points: The model in the most lists of this category gets 10; the others get 8 to 10 in proportion. In no list yet: 7.5. Lists count 30% of the overall score.
Enough data: Every list counts, even a single one. With fewer than 5 best-of lists in the category, this part is left out.
Lists with this model (0)
Not in any best-of list yet, so this part counts as 7.5. Models in a list get 8 to 10.
Not in any best-of list yet
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Best prices
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Smartwatches model ranking

Ranked #202 of 777 models in Smartwatches (Overall score)

Technical Specifications of smartwatch Kospet Tank M4C

Technical score
Technical score
7.7/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 35% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 76% of models
Score components:

24%

7.5

Health

21%

9.6

Fitness

16%

6.8

Battery

14%

7.5

Smart features

12%

6.4

Connectivity

9%

8.4

Display & Design

4%

5.7

Hardware

7.7
Reviews score
8.0
List score
?
Value for money
Value for money
8.3/ 10
✕
What it is
An indicator that combines the smartwatch's overall rating with its cost.
When it matters
When you are looking for a smartwatch with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 75% of models
Score components:

70%

7.6

Overall score

30%

?

Price

8.3
Heart rate monitor
yes
This smartwatch includes a heart rate monitor. 9.5% of smartwatches include a heart rate monitor.
Blood oxygen monitoring
yes
This smartwatch supports blood oxygen monitoring. 30.4% of smartwatches support blood oxygen monitoring.
ECG
no
This smartwatch does not support ECG. 18% of smartwatches support ECG.
Irregular heart rate warnings
?
HRV tracking
?
Show more
Accelerometer
yes
This smartwatch includes an accelerometer. 0.5% of smartwatches include an accelerometer.
Barometer
yes
This smartwatch includes a barometer. 46.5% of smartwatches include a barometer.
Gyroscope
?
Cadence sensor
?
Distance tracking
yes
This smartwatch supports distance tracking. 3.7% of smartwatches support distance tracking.
Show more
Battery life
16 days
Market range: <1 days – >16 days
This smartwatch lasts 16 days on a charge, which is longer than 87% of Smartwatches and the same as 1.3% of Smartwatches.
Battery life in training mode
?
Battery life with GPS on
21 h
Market range: <5.75 h – >43 h
This smartwatch lasts 21 h with GPS on, which is longer than 48% of Smartwatches and the same as 3.7% of Smartwatches.
Battery power
500 mAh
Market range: <195 mAh – >475 mAh
This smartwatch has a 500 mAh battery, which is larger than 89.8% of Smartwatches and the same as 2.2% of Smartwatches.
Charge time
120 min
Market range: <60 min – >150 min
This smartwatch charges from empty in 120 min, which is quicker than 13.3% of Smartwatches and the same as 44.6% of Smartwatches.
Show more
What reviewers say
Operating system
Proprietary OS
This smartwatch runs Proprietary OS, which is less advanced than the system in 54% of Smartwatches and equal to 42.1% of Smartwatches.
Software update frequency
?
Third-party app support
yes
This smartwatch supports third-party apps. 48.5% of smartwatches support third-party apps.
Notifications
yes
This smartwatch supports notifications. 0.3% of smartwatches support notifications.
Voice assistant support
yes
This smartwatch supports voice assistants. 30.8% of smartwatches support voice assistants.
Show more
What reviewers say
Cellular module
no
This smartwatch does not include a cellular module. 16.6% of smartwatches include a cellular module.
SIM cards
0
GPS
yes
This smartwatch supports GPS. 40.3% of smartwatches support GPS.
Galileo support
yes
This smartwatch supports Galileo navigation. 56.5% of smartwatches support Galileo navigation.
Dual-frequency GPS
yes
Kospet Tank M4C supports dual-frequency GPS. 85% of Smartwatches offer this.
Show more
What reviewers say
Screen size
1.96 inch
Market range: <1.2 inch – >1.82 inch
This smartwatch has a 1.96 inch screen, which is larger than 95.4% of Smartwatches and the same as 1.5% of Smartwatches.
Display type
AMOLED
This smartwatch uses AMOLED, which is more advanced than the screen in 46.9% of Smartwatches and equal to 53.1% of Smartwatches.
Resolution
466x 466
This smartwatch has a display resolution of 466x466 which is higher than that of 84.3% of smartwatches and equal to that of 13.2% of smartwatches.
Pixel density
331 ppi
Market range: <207 ppi – >461 ppi
This smartwatch has a pixel density of 331 ppi, which is higher than 56.3% of Smartwatches and equal to 1.4% of Smartwatches.
Display brightness
1,000 nits
Market range: <450 nits – >2k nits
This smartwatch has a screen brightness of 1,000 nits, which is higher than 53.5% of Smartwatches and equal to 27% of Smartwatches.
Show more
What reviewers say
CPU speed
?
Processor model
?
RAM
?
Internal storage
0.128 GB
Market range: <0 GB – >32 GB
This smartwatch has 0.128 GB of internal storage, which is less than 67.8% of Smartwatches and equal to 3.7% of Smartwatches.
External memory slot
no
This smartwatch does not include an external memory slot. 0.3% of smartwatches include an external memory slot.
Show more

Kospet Tank M4C vs the average smartwatch

246810TotalHealthFitnessBatteryConnectivityDisplay & DesignSmart featuresHardware
  • 9 days longer battery life
    This smartwatch runs longer per charge than the average smartwatch (16 days vs 7 days). The average smartwatch runs for 7 days on a charge.
    16 days vs 7 days
  • 0.56 inch larger display
    This smartwatch has a larger screen than the average smartwatch (2 inch vs 1.4 inch). The average smartwatch has a 1.4 inch screen.
    1.96 inch vs 1.4 inch
  • Supports dual-frequency GPS
    Kospet Tank M4C supports dual-frequency GPS, while the average smartwatch does not. 15.1% of Smartwatches support dual-frequency GPS.
  • Galileo satellite support
    This smartwatch supports Galileo navigation, the average smartwatch does not. 43.6% of smartwatches support Galileo navigation.
  • Stronger ingress protection
    This smartwatch has stronger ingress protection than the average smartwatch (IP69K vs IP68).
    IP69K vs IP68
  • Rugged construction
    This smartwatch has a rugged design, the average smartwatch does not. 41.3% of smartwatches have a rugged design.
  • Stronger display glass
    This smartwatch uses Corning Gorilla Glass 3 display glass, while the average smartwatch uses mineral glass.
    Corning Gorilla Glass 3 vs mineral glass
  • 195 mAh larger battery capacity
    This smartwatch has a larger battery than the average smartwatch (500 mAh vs 305 mAh). The average smartwatch has a 305 mAh battery.
    500 mAh vs 305 mAh
  • 14.3% higher review score
    Reviews score
    8.0/ 10
    ✕
    What it is
    Average grade from independent test sites, magazines and video reviewers, 1–10.
    How we count it
    Grades: Each review's own score is converted to 1–10; without one, we grade the review ourselves. Every review counts the same: written or video, short or full test.
    Score: The average grade is 80% of the review mark; the number of reviews is the other 20% (1 review = 5, the typical number in this category = 8, the most-reviewed model = 10).
    Enough data: With few reviews, the average grade is pulled toward the typical grade of this category. No reviews yet: 7.5 for now.
    Share: Reviews count 25% of the overall score.
    Score distribution
    â–¼
    <55-66-77-88-99-10
    â–² Better than 51% of models

    80%

    8.2

    Average grade

    20%

    7.4

    Popularity

    Grades by review (10)
    10 videos, average 8.3/10. Reviews count 25% of the overall score.
    User ratings collected online are not part of this score.
    8.0 vs 7.0
  • 9 days longer battery life
    This smartwatch runs longer per charge than the average smartwatch (16 days vs 7 days). The average smartwatch runs for 7 days on a charge.
    16 days vs 7 days
  • 195 mAh larger battery capacity
    This smartwatch has a larger battery than the average smartwatch (500 mAh vs 305 mAh). The average smartwatch has a 305 mAh battery.
    500 mAh vs 305 mAh
  • Supports dual-frequency GPS
    Kospet Tank M4C supports dual-frequency GPS, while the average smartwatch does not. 15.1% of Smartwatches support dual-frequency GPS.
  • Galileo satellite support
    This smartwatch supports Galileo navigation, the average smartwatch does not. 43.6% of smartwatches support Galileo navigation.
  • More current Bluetooth version
    This smartwatch uses a more current Bluetooth version than the average smartwatch (5.3 vs 5).
    5.3 vs 5.0
  • 0.56 inch larger display
    This smartwatch has a larger screen than the average smartwatch (2 inch vs 1.4 inch). The average smartwatch has a 1.4 inch screen.
    1.96 inch vs 1.4 inch
  • Stronger ingress protection
    This smartwatch has stronger ingress protection than the average smartwatch (IP69K vs IP68).
    IP69K vs IP68
  • Stronger display glass
    This smartwatch uses Corning Gorilla Glass 3 display glass, while the average smartwatch uses mineral glass.
    Corning Gorilla Glass 3 vs mineral glass
  • Rugged construction
    This smartwatch has a rugged design, the average smartwatch does not. 41.3% of smartwatches have a rugged design.
  • Better band material
    This smartwatch uses stainless steel for the band material, while the average smartwatch uses silicone.
    stainless steel vs silicone
  • Higher resolution
    This smartwatch has a display resolution of 466x466, while the average smartwatch reaches 360x360.
    466x466 vs 360x360
  • 25 °C higher heat tolerance
    This smartwatch tolerates a higher temperature than the average smartwatch (70 °C vs 45 °C). The average smartwatch is rated up to 45.0 °C.
    70 °C vs 45.0 °C
  • 250 nits brighter screen
    This smartwatch has a brighter screen than the average smartwatch (1000 nits vs 750 nits). The average smartwatch peaks at 750 nits.
    1,000 nits vs 750 nits
  • Better case material
    This smartwatch uses stainless steel, zinc alloy for the case material, while the average smartwatch uses polycarbonate.
    stainless steel, zinc alloy vs polycarbonate
  • 21 g heavier
    This smartwatch is heavier than the average smartwatch (66 g vs 45 g). The average smartwatch weighs 45.0 g.
    66 g vs 45.0 g
  • 1.3 mm thicker
    This smartwatch is thicker than the average smartwatch (13 mm vs 11.7 mm). The average smartwatch is 11.7 mm thick.
    13 mm vs 11.7 mm
  • 96.8% less internal storage
    This smartwatch has less internal storage than the average smartwatch (0.1 GB vs 4 GB). The average smartwatch has 4 GB of internal storage.
    0.128 GB vs 4 GB
  • 21 g heavier
    This smartwatch is heavier than the average smartwatch (66 g vs 45 g). The average smartwatch weighs 45.0 g.
    66 g vs 45.0 g
  • 1.3 mm thicker
    This smartwatch is thicker than the average smartwatch (13 mm vs 11.7 mm). The average smartwatch is 11.7 mm thick.
    13 mm vs 11.7 mm
  • 96.8% less internal storage
    This smartwatch has less internal storage than the average smartwatch (0.1 GB vs 4 GB). The average smartwatch has 4 GB of internal storage.
    0.128 GB vs 4 GB

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

8.0
Survival Russia
≈ estimated
18/04/2026
Hands-on review · workouts, flashlight and value
Verdict
Kospet Tank M4C works well for the price, with a useful flashlight and workout timers, though it has no offline maps.
7.0
Tech, Gadgets and Other Great Ideas
≈ estimated
27/01/2026
Hands-on review · flashlight, apps and watch faces
Verdict
Kospet Tank M4C lacks music storage, earbud pairing and offline maps at this price; choose the Tank M4 if you need them.
9.0
Walnut and Steel
≈ estimated
27/01/2026
Long-term test · about three weeks of daily wear
Verdict
Kospet Tank M4C is an excellent smartwatch, comfortable day and night, with only minor app quirks.
9.0
Tough Guys DIY
≈ estimated
27/01/2026
Hands-on review · flashlight, battery, display and tools
Verdict
Kospet Tank M4C is worth considering in 2026, with a useful flashlight and long battery life for the price.
9.0
Matao Outdoors
≈ estimated
27/01/2026
Hands-on review · 10 days of daily use
Verdict
Kospet Tank M4C is an appealing outdoor smartwatch with a flashlight, walkie-talkie and long battery life.
7.0
Mike Tango Whiskey
≈ estimated
27/01/2026
Two-week wear test · water and sauna tests
Verdict
Kospet Tank M4C is not for analogue watch fans, but it is a fair option for anyone wanting a smartwatch.
8.0
Modern DIY Projects
≈ estimated
27/01/2026
Hands-on review · a few days of use and feature tour
Verdict
Kospet Tank M4C is feature-packed, durable and good value, though its battery life is still unproven.
Hands-on video, no verdict
Brand video

What reviewers agree on

Based on 0 · 10

Reviewers like the handy flashlight and feature set, but battery life and durability split opinions, and offline maps disappoint.
Praised
Mixed views
Criticised
Pick a topic to see who said what

Third-party reviews

What we like about Kospet Tank M4C

  • 16 days of rated battery life covers a long trip without a charger.
  • A built-in flashlight has five levels for night tasks.
  • In tests, magnetic charging took about 40 minutes from 35 to 100 percent.
  • At 66 g it is light enough for all-day wear.
  • A swim sport mode is included for pool sessions.
  • Many watch faces are included, some of them free.

What we don't like about Kospet Tank M4C

  • No offline maps, so routes stay on the phone.
  • The stress readings seem unreliable.
  • Charging from empty takes 120 min.
  • There is no fall detection or crash detection.
  • There is no ECG sensor.

Verdict

For a runner who forgets to charge, the Kospet Tank M4C is a sensible pick. Rated at 16 days, it lasts about that long in everyday use, and with GPS on it runs 21 h. Dual-frequency GPS keeps routes accurate, and the bright screen reads well at 1000 nits in daylight. The IP69K rating and 5 ATM build suit mud, rain and swimming, and the watch works from -50 °C to 70 °C. A built-in flashlight with five levels is handy on dark trails, and the always-on display keeps the time visible. The trade-off is the lack of offline maps: routes cannot be loaded onto the watch, so you follow them on the phone. It suits someone who wants long days of battery life and a tough, light watch for everyday training.

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