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 T4 review: 127 specs compared

Avg. price:~£?Screen size:1.43 inchBattery life:15 daysDisplay type:AMOLED

Kospet Tank T4 Review: Compare 127 technical specifications, 46 expert and video reviews and 1 best-of list to see how this product ranks in the Smartwatches category and whether it is worth buying.

Kospet Tank T4
8.0/10

Overall score

Score
8.0/ 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
▼
<55-66-77-88-99-10
▲ Better than 82% of models
Score components

35%

7.7

Technical score

30%

7.7

List score

25%

8.7

Reviews score

10%

7.6

Sentiment score

▲Better than 82% 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
▼
<55-66-77-88-99-10
Score components

70%

8.0

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
▼
<55-66-77-88-99-10
▲ Better than 76% of models
Score components

24%

7.3

Health

21%

9.6

Fitness

16%

6.8

Battery

14%

7.5

Smart features

12%

6.4

Connectivity

9%

7.9

Display & Design

4%

8.4

Hardware

▲Better than 76%
8.7

Reviews score

Reviews score
8.7/ 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
▼
<55-66-77-88-99-10
★ Better than 97% of models

80%

8.6

Average grade

20%

9.2

Popularity

Grades by review (46)
8 reviews + 38 videos, average 8.7/10. Reviews count 25% of the overall score.
User ratings collected online are not part of this score.
★Better than 97%
7.7

List score

List score
7.7/ 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 (1)
List score: in 1 of 118 lists (1%)
▲Better than 76%
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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 #134 of 777 models in Smartwatches (Overall score)

Technical Specifications of smartwatch Kospet Tank T4

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
▼
<55-66-77-88-99-10
▲ Better than 76% of models
Score components:

24%

7.3

Health

21%

9.6

Fitness

16%

6.8

Battery

14%

7.5

Smart features

12%

6.4

Connectivity

9%

7.9

Display & Design

4%

8.4

Hardware

7.7
Reviews score
8.7
List score
7.7
Value for money
Value for money
8.6/ 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
▼
<55-66-77-88-99-10
▲ Better than 89% of models
Score components:

70%

8.0

Overall score

30%

?

Price

8.6
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
What reviewers say
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
yes
This smartwatch includes a gyroscope. 28.9% of smartwatches include a gyroscope.
Cadence sensor
?
Distance tracking
yes
This smartwatch supports distance tracking. 3.7% of smartwatches support distance tracking.
Show more
What reviewers say
Battery life
15 days
Market range: <1 days – >16 days
This smartwatch lasts 15 days on a charge, which is longer than 83% of Smartwatches and the same as 3.9% of Smartwatches.
Battery life in training mode
?
Battery life with GPS on
22 h
Market range: <5.75 h – >43 h
This smartwatch lasts 22 h with GPS on, which is longer than 52.5% of Smartwatches and the same as 2.9% 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 T4 supports dual-frequency GPS. 85% of Smartwatches offer this.
Show more
What reviewers say
Screen size
1.43 inch
Market range: <1.2 inch – >1.82 inch
This smartwatch has a 1.43 inch screen, which is larger than 56.3% of Smartwatches and the same as 8.6% 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
461 ppi
Market range: <207 ppi – >461 ppi
This smartwatch has a pixel density of 461 ppi, which is higher than 85% of Smartwatches and equal to 6.6% 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
0.016 GB
Market range: <0.5 GB – >2 GB
This smartwatch has 0.016 GB of RAM, which is less than 97.7% of Smartwatches and equal to 0.5% of Smartwatches.
Internal storage
32 GB
Market range: <0 GB – >32 GB
This smartwatch has 32 GB of internal storage, which is more than 81.3% of Smartwatches and equal to 15% 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 T4 vs the average smartwatch

246810TotalHealthFitnessBatteryConnectivityDisplay & DesignSmart featuresHardware
  • 8 days longer battery life
    This smartwatch runs longer per charge than the average smartwatch (15 days vs 7 days). The average smartwatch runs for 7 days on a charge.
    15 days vs 7 days
  • Temperature sensing
    This smartwatch includes a temperature sensor, the average smartwatch does not. 31.9% of smartwatches include a temperature sensor.
  • Maps support
    This smartwatch supports maps, the average smartwatch does not. 34.4% of smartwatches support maps.
  • 24.3% higher review score
    Reviews score
    8.7/ 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
    ▼
    <55-66-77-88-99-10
    ★ Better than 97% of models

    80%

    8.6

    Average grade

    20%

    9.2

    Popularity

    Grades by review (46)
    8 reviews + 38 videos, average 8.7/10. Reviews count 25% of the overall score.
    User ratings collected online are not part of this score.
    8.7 vs 7.0
  • 8x more internal storage
    This smartwatch has more internal storage than the average smartwatch (32 GB vs 4 GB). The average smartwatch has 4 GB of internal storage.
    32 GB vs 4 GB
  • Supports dual-frequency GPS
    Kospet Tank T4 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
  • 24.3% higher review score
    Reviews score
    8.7/ 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
    ▼
    <55-66-77-88-99-10
    ★ Better than 97% of models

    80%

    8.6

    Average grade

    20%

    9.2

    Popularity

    Grades by review (46)
    8 reviews + 38 videos, average 8.7/10. Reviews count 25% of the overall score.
    User ratings collected online are not part of this score.
    8.7 vs 7.0
  • 10.3% better value for money
    Kospet Tank T4 has a higher value-for-money score than the average smartwatch (8.57 vs 7.8).
    8.57 vs 7.76
  • Temperature sensing
    This smartwatch includes a temperature sensor, the average smartwatch does not. 31.9% of smartwatches include a temperature sensor.
  • 4 years newer
    This smartwatch was released more recently than the average smartwatch (2025 vs 2021). The average smartwatch was released in 2021.
    2,025 vs 2,021
  • 8 days longer battery life
    This smartwatch runs longer per charge than the average smartwatch (15 days vs 7 days). The average smartwatch runs for 7 days on a charge.
    15 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
  • Maps support
    This smartwatch supports maps, the average smartwatch does not. 34.4% of smartwatches support maps.
  • Supports dual-frequency GPS
    Kospet Tank T4 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
  • 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.
  • 135 ppi sharper screen
    This smartwatch has a sharper screen than the average smartwatch (461 ppi vs 326 ppi). The average smartwatch has a pixel density of 326 ppi.
    461 ppi vs 326 ppi
  • 50 m deeper water rating
    This smartwatch is rated for deeper water than the average smartwatch (100 m vs 50 m). The average smartwatch is rated to 50 m.
    100 m vs 50 m
  • Higher resolution
    This smartwatch has a display resolution of 466x466, while the average smartwatch reaches 360x360.
    466x466 vs 360x360
  • Better case material
    This smartwatch uses stainless steel for the case material, while the average smartwatch uses polycarbonate.
    stainless steel vs polycarbonate
  • 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
  • 8x more internal storage
    This smartwatch has more internal storage than the average smartwatch (32 GB vs 4 GB). The average smartwatch has 4 GB of internal storage.
    32 GB vs 4 GB
  • 32 g heavier
    This smartwatch is heavier than the average smartwatch (77 g vs 45 g). The average smartwatch weighs 45.0 g.
    77 g vs 45.0 g
  • 2 mm thicker
    This smartwatch is thicker than the average smartwatch (13.7 mm vs 11.7 mm). The average smartwatch is 11.7 mm thick.
    13.7 mm vs 11.7 mm
  • 67 fewer exercise types
    This smartwatch includes fewer exercise types than the average smartwatch (23 vs 90). The average smartwatch includes 90 exercise types.
    23 vs 90
  • 6.1 mm wider case
    This smartwatch has a wider case than the average smartwatch (48.6 mm vs 42.5 mm). The average smartwatch measures 42.5 mm across.
    48.6 mm vs 42.5 mm
  • 3.6 mm taller case
    This smartwatch has a taller case than the average smartwatch (48.6 mm vs 45 mm). The average smartwatch is 45.0 mm tall.
    48.6 mm vs 45.0 mm
  • 98.4% less RAM
    This smartwatch has less RAM than the average smartwatch (0 GB vs 1 GB). The average smartwatch has 1 GB of RAM.
    0.016 GB vs 1 GB
  • 2.5% lower list score
    List score
    7.7/ 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 (1)
    List score: in 1 of 118 lists (1%)
    7.7 vs 7.9
  • Basic band material
    This smartwatch uses silicone, rubber for the band material, while the average smartwatch uses silicone.
    silicone, rubber vs silicone
  • 2.5% lower list score
    List score
    7.7/ 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 (1)
    List score: in 1 of 118 lists (1%)
    7.7 vs 7.9
  • 67 fewer exercise types
    This smartwatch includes fewer exercise types than the average smartwatch (23 vs 90). The average smartwatch includes 90 exercise types.
    23 vs 90
  • 32 g heavier
    This smartwatch is heavier than the average smartwatch (77 g vs 45 g). The average smartwatch weighs 45.0 g.
    77 g vs 45.0 g
  • 2 mm thicker
    This smartwatch is thicker than the average smartwatch (13.7 mm vs 11.7 mm). The average smartwatch is 11.7 mm thick.
    13.7 mm vs 11.7 mm
  • 6.1 mm wider case
    This smartwatch has a wider case than the average smartwatch (48.6 mm vs 42.5 mm). The average smartwatch measures 42.5 mm across.
    48.6 mm vs 42.5 mm
  • 3.6 mm taller case
    This smartwatch has a taller case than the average smartwatch (48.6 mm vs 45 mm). The average smartwatch is 45.0 mm tall.
    48.6 mm vs 45.0 mm
  • Basic band material
    This smartwatch uses silicone, rubber for the band material, while the average smartwatch uses silicone.
    silicone, rubber vs silicone
  • 98.4% less RAM
    This smartwatch has less RAM than the average smartwatch (0 GB vs 1 GB). The average smartwatch has 1 GB of RAM.
    0.016 GB vs 1 GB

Video reviews

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

9.0
Farpoint Farms
≈ estimated
14/10/2026
Hands-on review · design, settings and features
Verdict
Kospet Tank T4 is an elegant, high-quality watch with many features, and the lack of a built-in camera is its only real complaint.
9.0
Sky Vanya
≈ estimated
20/09/2026
Hands-on review · GPS accuracy, build and app
Verdict
Kospet Tank T4 is a very likeable rugged watch with accurate GPS, strong protection and a clear app.
9.0
Dashunthetruth
≈ estimated
27/07/2026
Hands-on review · unboxing, app and heart rate tests
Verdict
Kospet Tank T4 is a very durable watch with useful outdoor features, and is clearly recommended for rugged, active use.
9.0
Bushcraft With Ste Outdoors
≈ estimated
11/07/2026
Long-term test · a month of daily use
Verdict
Kospet Tank T4 is a great bargain for the price, with a comfortable strap, but the steel bracelet fit is awkward.
9.0
Thomas Tan Ultra
≈ estimated
29/12/2025
Long-term test · two months of running and trail use
Verdict
Kospet Tank T4 is excellent value for trail and ultra runners who want durability, though its GPS is less refined than premium models.
9.0
Tough Guys DIY
≈ estimated
29/10/2025
Hands-on review · durability tests in the shop
Verdict
Kospet Tank T4 is a tough watch that has held up to daily knocks, and one the reviewer would recommend to smartwatch buyers.
9.0
NorthernSeclusion
≈ estimated
29/10/2025
Hands-on review · water, GPS and daily-use tests
Verdict
Kospet Tank T4 is a solid, well-built rugged watch at a good price, and a great gift choice.
9.0
dial2fast
≈ estimated
18/10/2025
Long-term test · 9 days of daily use and battery check
Verdict
Kospet Tank T4 left the reviewer very happy after daily wear, with good looks, comfort, build quality and auto-brightness.
9.0
Tech Brothers
≈ estimated
17/10/2025
Hands-on review · GPS walk, offline maps and calls
Verdict
Kospet Tank T4 is a decent rival to Garmin watches at a fraction of the price.
9.5
Ultra Value Tech
≈ estimated
17/10/2025
Hands-on review · build, GPS, maps and battery
Verdict
Kospet Tank T4 has a premium build, dual-band GPS and offline maps, which make it hard to beat at this price.
9.0
Rimzler
≈ estimated
17/10/2025
Hands-on review · sports tracking and hardware
Verdict
Kospet Tank T4 has strong hardware and detailed sports tracking at a low price, though touchless navigation and message replies are still missing.
8.0
Hopeful Ballistics
≈ estimated
17/10/2025
Hands-on review · app setup, scratch test and features
Verdict
Kospet Tank T4 earns praise for its app and scratch-resistant glass for outdoor use, though the reviewer wishes altitude read in feet.
More graded video reviews (8)
creator’s own scoreestimated by us

What reviewers agree on

Based on 8 · 12

Reviewers praise the toughness, navigation and long battery, but sleep and health tracking are widely seen as weak.
Praised
Mixed views
Criticised
Pick a topic to see who said what

Expert reviews

In-depth analysis and verdict from leading tech publications

8.6
gominreviews.com
✓ explicit
16/05/2026
Hands-on test · Offline GPS and battery
Verdict
The KOSPET TANK T4 is a rugged GPS watch that tracks routes without a phone and is rated for 50 days of battery, but its app is basic.
8.4
cktechcheck.com
✓ explicit
05/06/2026
Hands-on test · Rugged dress watch
Verdict
The KOSPET Tank T4 Special Edition suits hikers who want a dressy steel watch with a 15-day battery, but retail units offer little storage for offline maps.
8.6
scubaspotadvisor.com
✓ explicit
13/09/2026
Hands-on test · Diving and multisport
Verdict
The KOSPET TANK T4 handled 30 m scuba dives in testing, but its app is less developed than those of market leaders.
9.4
smartphonemag.de
✓ explicit
10/04/2026
Summary test · Outdoor smartwatch
Verdict
The Kospet Tank T4 is a rugged outdoor watch with offline maps and a bright screen, suited to hikers and athletes who want a durable watch.
8.0
gameswelt.de
≈ estimated
25/07/2026
Hands-on test · Outdoor smartwatch
Verdict
The Kospet Tank T4 Special Edition is a sturdy, bulky outdoor watch with a bright screen and long battery, but its closed system rules out third-party apps.
7.0
tchgdns.de
≈ estimated
16/08/2026
Full review · Outdoor smartwatch
Verdict
The Kospet Tank T4 Special Edition is a solid outdoor watch with a premium-feeling steel case, but clumsy route setup and no third-party apps hold it back.
9.0
screen.de
≈ estimated
29/06/2026
Hands-on test · Outdoor smartwatch
Verdict
The Kospet Tank T4 Special Edition is a sturdy outdoor watch that suits the office, with a bright screen and long battery, but it is heavy.
5.0
montre-cardio-gps.fr
≈ estimated
27/02/2026
Hands-on test · Outdoor sports watch
Verdict
The KOSPET TANK T4 has good hardware and a large screen, but it has few sports features and can't pair with a chest strap or power meter.

Third-party reviews

What we like about Kospet Tank T4

  • The watch has 23 ApexMotion modes and 160 freestyle sport modes.
  • Offline maps and GPX and KML import let you follow routes on the wrist.
  • The 100 m waterproof rating suits swimming and snorkelling.
  • Dive entry and exit points are logged on scuba dives.
  • The rugged build came through durability tests well.
  • Distance and altitude data are accurate on walks.

What we don't like about Kospet Tank T4

  • The 77 g weight makes it heavy for all-day wear.
  • Long sleeves can cover the optical heart rate sensor.
  • It is not the first choice for cycling compared with a dedicated bike computer.
  • Screen scratches when dragged over stones without a protector.
  • Advanced or technical diving needs a dedicated dive computer.

Verdict

Offline maps and dive logging set the Kospet Tank T4 apart from the usual sports watch. It suits a walker, swimmer or freediver who wants one tough watch for the trail and the pool. It logs dive entry and exit points, and a freediving test went to 26 m without trouble. The 100 m waterproof rating and 32 GB of storage leave room for offline maps and music on the wrist. Dual-frequency GPS, GPX and KML route import, and accurate altitude data help on long walks. The trade-off is the weight: at 77 g and 48.6 mm wide, the case feels bulky on smaller wrists. The rated 15 days is a fair guide, with about 10 to 14 days expected in daily use, so a long trip needs no charger.

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