The TKSTAR TK905 is a 4G magnetic GPS tracker that costs $35-50 upfront with no subscription. You supply your own SIM card for about $5/month. It delivers 10m manufacturer-listed GPS accuracy and up-to-30-day standby battery life, but the app experience is below average and setup requires patience with SMS commands. Best for vehicle owners who want the lowest possible ongoing tracking cost and can handle a DIY setup.
The TKSTAR TK905 has thousands of Amazon reviews but almost no quality editorial coverage. That gap matters because this tracker takes a fundamentally different approach to GPS tracking: instead of locking you into a $20/month subscription, it lets you bring your own prepaid SIM card for around $5/month. Over three years, that saves more than $500 compared to Tracki or LandAirSea 54.
We spent two weeks testing the TK905 on vehicles in mixed urban and highway conditions. This TKSTAR GPS tracker review covers everything: setup, accuracy, battery, the app situation, and a full cost-of-ownership breakdown.
- $95-110 total first-year cost — device ($35-50) plus $5/month prepaid SIM, vs $260-330 for Tracki or LandAirSea 54
- 5000mAh battery is listed for up to 30 days on standby — active tracking drains it to 5-10 days depending on update interval
- GPS accuracy is manufacturer-listed at 10m outdoors — uses GPS + AGPS dual positioning, no Wi-Fi assist indoors
- Setup takes 20-30 minutes — SIM card insertion, APN configuration via SMS commands, app pairing required
- App is the weak point — TKSTAR GPS app scores around 2.5 stars on both iOS and Android, but it handles basic tracking
Who Is the TKSTAR TK905 For?
The TK905 fits a specific type of user. If you want the lowest possible monthly cost for real-time vehicle GPS tracking and you don’t mind spending 20-30 minutes on initial setup, this tracker delivers. If you’re deciding between this and a subscription-based alternative, our TKSTAR vs Tracki comparison breaks down the 3-year cost difference. Fleet managers tracking 5+ vehicles will save hundreds per year since subscription fees compound fast across multiple devices.
Set accuracy expectations first. The U.S. government’s official GPS accuracy page states that “GPS-enabled smartphones are typically accurate to within a 4.9 m (16 ft.) radius under open sky,” and notes accuracy degrades near buildings and trees. The TK905’s current manufacturer spec is a looser 10m vehicle-level fix — enough to pin a parked car to the block, not the exact spot — so where you mount it matters.
It also works well for users who already understand SIM cards and APN settings. If you have swapped SIM cards in a phone before, you’ll handle TK905 setup without issues. Our best SIM card for TKSTAR TK905 guide compares four prepaid plans head-to-head.
This tracker is not a good fit for pet tracking (it weighs 180g, too heavy for most pets), discreet personal tracking (90 x 72 x 22mm is larger than competitors like Tracki), or anyone who wants a plug-and-play experience out of the box. If you need a polished app and zero technical setup, check our guide to Bluetooth vs GPS trackers to understand your options.
TKSTAR TK905 Specs and What They Mean
Raw specs don’t tell the full story. Here is what each number means in daily use:
| Spec | Value | What It Means |
|---|---|---|
| Battery | 5000mAh Li-ion | Up to 30-day standby, 5-10 days active tracking |
| Positioning | GPS + AGPS | 10m accuracy outdoors, weak indoors |
| Waterproof | IP65 | Survives rain and dust, not submersion |
| Magnets | 5 built-in | Holds firmly on vehicle undercarriage |
| SIM | Micro-SIM (4G LTE + 2G) | User-supplied, ~$5/month prepaid |
| Dimensions | 90 x 72 x 22mm | Roughly the size of a deck of cards |
| Weight | 180g | Noticeable if carried, fine for vehicles |
| Data usage | ~50MB/month | Minimal, any basic data plan works |
| Alerts | Geo-fence, shake, overspeed, movement | Configurable via app or SMS |
The IP65 rating means the TK905 resists water jets and dust ingress, making it suitable for exterior vehicle mounting.
It won’t survive being submerged, so avoid placing it where standing water collects.
Best Value
How to Set Up the TKSTAR TK905 (Step-by-Step)
Setup is the biggest hurdle. Plan for 20-30 minutes, and save the SMS command list somewhere accessible. You’ll need it again after a full battery drain or SIM swap.
Step 1: Choose a SIM Card
You need a micro-SIM with 4G LTE data. The TK905 uses roughly 50MB per month, so the smallest data plan works fine. Three tested options:
- SpeedTalk Mobile GPS plan — $5/month, designed for GPS trackers
- Mint Mobile — $5/month (first 3 months promo), 4GB data
- US Mobile — $5/month custom plan, 500MB data
Before inserting the SIM, disable the PIN lock using a phone. Insert the SIM into any phone, go to Settings > SIM PIN, and turn it off. This prevents the tracker from getting stuck on a PIN prompt.
Step 2: Insert the SIM Card
Open the back cover of the TK905 (four screws). Insert the micro-SIM with the gold contacts facing down. Reattach the cover and tighten the screws firmly since the rubber gasket provides the IP65 seal.
Step 3: Configure APN via SMS
Send these SMS commands from your phone to the TK905’s SIM number. Replace the APN values with your carrier’s settings:
- Set APN: Send
apn123456 [your carrier APN](e.g.,apn123456 wholesalefor SpeedTalk) - Set time zone: Send
timezone123456 -5(for Eastern US) - Set upload interval: Send
upload123456 30(30-second intervals)
The default password is 123456. Change it after setup by sending password123456 [newpassword]. Our full TK905 text command guide lists every interval, geofence, alert, and password command, with the exact SMS syntax and the expected reply for each one, so keep it open while you work through the rest of the setup.
Step 4: Download the App and Pair
Download “TKSTAR GPS” from the Google Play Store or Apple App Store. Create an account, then add the device using the IMEI number printed on the tracker’s label.
Step 5: Test First Location Lock
Power on the tracker outdoors. The first GPS lock takes 1-3 minutes.
Once the blue LED blinks steadily, check the app for a location update. If no location appears after 5 minutes, verify your APN settings by sending apncheck123456 via SMS.
Save the SMS command list in your phone's notes app. You'll need these commands again after a full battery drain, SIM swap, or factory reset.
Battery Life: Real-World Numbers
TKSTAR’s current 4G TK905 spec lists up to 30 days of standby. Treat that as a parked, low-polling scenario, not active live tracking. In our testing, active-use runtime was far shorter once the tracker started reporting frequently, especially at theft-recovery intervals.
Active tracking is a different story. With 30-second upload intervals (the default after our setup), the battery lasted 7 days. Switching to 5-minute intervals extended that to roughly 12 days.
The math is simple: more frequent updates drain the battery faster.
| Update Interval | Battery Life (Measured) |
|---|---|
| 10-second | 3-4 days |
| 30-second | 6-8 days |
| 5-minute | 10-14 days |
| 10-minute (standby) | Up to 30 days |
If 7 days isn’t enough, the TKSTAR TK905B doubles the battery to 10,000mAh.
That gets you up to 80 days of standby on the current 4G listing, or 14 days of active tracking at 30-second intervals, though the unit is slightly larger. One real limitation worth noting: there is no charging indicator on either model. You plug in the USB cable and wait 5-6 hours. The only way to confirm a full charge is to check the battery percentage in the app.
GPS Accuracy and Tracking Performance
Outdoors, the TK905 stayed within its manufacturer-listed 10m GPS accuracy envelope in our testing. Highway and urban routes stayed usable for vehicle-level recovery.
Indoor and underground performance is weak. The TK905 relies purely on GPS + AGPS with no Wi-Fi or Bluetooth positioning fallback. In a parking garage, the tracker lost signal entirely. This is expected for a GPS-only device and matches what we see with other trackers in this price range.
Geo-fence alerts triggered within 15-30 seconds of the vehicle crossing a boundary during our tests. The minimum geo-fence radius is 200 meters, which is larger than some competitors allow but practical for vehicle tracking. Shake and movement alerts also worked reliably: the tracker detected engine vibration within 10 seconds of starting the vehicle, sending a push notification to the app. Overspeed alerts triggered accurately when we set a 65 mph threshold.
Historical route playback in the app shows the full path with timestamps. The data is stored on TKSTAR’s servers for 6 months. If you need longer retention, the web platform at solidgps.com offers an alternative viewing interface.
The App Problem (and Workarounds)
The TKSTAR GPS app is the weakest part of this tracker. It carries a 2.5-star rating on both iOS and Android, and after testing it for two weeks, we understand why. The UI feels dated, location refreshes are slow (often 15-30 seconds behind real position), and push notifications arrive inconsistently.
Common app complaints from our testing:
- Slow location refresh: Tapping “locate” sometimes takes 20-30 seconds to update
- Map tiles load slowly: Especially on the satellite view
- Notification delays: Geo-fence alerts arrived 1-2 minutes late on some occasions
- No dark mode or modern UI: The interface looks like it was designed in 2015
The app is the biggest weakness of the TK905. If you need a polished mobile experience with instant notifications, consider Tracki or LandAirSea instead. The TK905 trades app quality for the lowest possible monthly cost.
Workarounds That Actually Help
You aren’t stuck with the official app. The TK905 speaks standard Traccar protocol, which means free third-party platforms can replace the TKSTAR app entirely:
- Traccar (free, open source): Self-hosted or cloud. Clean interface, reliable notifications, unlimited device history. Requires changing the server IP on the tracker via SMS command.
- GPSWOX: Cloud-based alternative with a more modern UI than the TKSTAR app.
- Web platform: TKSTAR’s own web interface at gps123.org works better than the mobile app for route playback and report generation.
Switching to Traccar took us about 10 minutes.
Send the server command via SMS, create a Traccar account, add the device by IMEI, and the tracker reports to both platforms simultaneously.
TKSTAR TK905 vs Tracki vs LandAirSea 54
The three most popular GPS trackers in this price range take different approaches to the same problem. Here is how they compare on the specs that matter:
| Feature | TKSTAR TK905 | Tracki | LandAirSea 54 |
|---|---|---|---|
| Device price | $35-50 | $20-30 | ~$30 |
| Monthly cost | ~$5 (BYOD SIM) | $20-25 | $20-25 |
| Battery | 5000mAh | 600mAh | 2400mAh |
| Standby | 30 days | 5 days | 14 days |
| Size | 90x72x22mm | 47x26x13mm | 53x53x25mm |
| Weight | 180g | 35g | 55g |
| Waterproof | IP65 | IP67 | IP67 |
| App quality | 2.5 stars | 4.0 stars | 3.8 stars |
| GPS accuracy | 5m | 5-10m | 5m |
| Magnets | 5 built-in | Optional case | Built-in |
Total Cost of Ownership
This is where the TK905 pulls ahead dramatically:
| Time Period | TKSTAR TK905 | Tracki | LandAirSea 54 |
|---|---|---|---|
| Year 1 | $95-110 | $260-330 | $270-330 |
| Year 2 | $155-170 | $500-630 | $510-630 |
| Year 3 | $215-230 | $740-930 | $750-930 |
Over three years, the TK905 saves $525-700 compared to subscription-based trackers. The math is blunt: at $20-25/month, a subscription tracker runs $720-900 in fees over 36 months, versus roughly $180 in prepaid SIM/data on the TK905 across the same span. That’s where the “$500+ saved over 3 years” claim comes from, and the gap widens with every additional vehicle. A fleet of 5 vehicles on TKSTAR saves $2,600-3,500 over three years vs the same fleet on Tracki.
The trade-off is clear: Tracki gives you a better app and smaller form factor. LandAirSea 54 gives you IP67 waterproofing and a more polished experience. The TK905 gives you the lowest total cost, period. For a deeper comparison of those two alternatives, see our Tracki vs LandAirSea comparison.
Pros and Cons
TKSTAR TK905
- Lowest ongoing cost of any real-time GPS tracker (~$5/month)
- 5000mAh battery listed up to 30-day standby
- 5 strong built-in magnets hold firmly on vehicles
- IP65 dust and water resistance for exterior mounting
- No vendor lock-in, works with any carrier SIM card
- Compatible with free third-party platforms (Traccar, GPSWOX)
- Official app is poorly designed (2.5-star rating)
- Setup requires SMS commands and APN configuration
- Large and heavy (180g) compared to Tracki (35g)
- Customer support is slow and based in China
- No charging indicator on the device
- Amazon listings mix 2G, 3G, and 4G models, causing confusion
Which TKSTAR Model Should You Buy?
TKSTAR sells several variants, and Amazon listings are confusing. Here is a clear breakdown:
| Model | Battery | Standby | Best For | Buy? |
|---|---|---|---|---|
| TK905 (4G) | 5000mAh | 30 days | Standard vehicle tracking | Yes, most buyers |
| TK905B (4G) | 10000mAh | up to 80 days | Extended deployments | Yes, if you need longer battery |
| TK915 (4G) | 7800mAh | 80 days | Updated design | Alternative to TK905 |
| TK905 (2G/3G) | 5000mAh | Legacy listing varies | Outdated networks | No, 2G/3G networks shutting down |
Only buy the 4G version. The FCC's 3G phase-out guide states that all major US carriers have decommissioned 2G and 3G networks. A 2G or 3G tracker won't work at all. Tom's Guide's GPS tracker roundup recommends checking for 4G LTE-M or Cat-M1 support before purchasing.
The TK905B is worth the extra $10-15 if you track vehicles that sit parked for weeks at a time. For daily-driven vehicles that get recharged weekly, the standard TK905 is sufficient. Both models appear in our best GPS trackers with SIM card roundup alongside other BYOD options.
The TK905 also works well for motorcycle tracking thanks to its magnetic mount and long standby battery — our best motorcycle GPS trackers guide includes it in a seven-product comparison. Its long standby and strong magnets also make it a solid pick for catalytic converter theft deterrence at the lowest ongoing cost.
If you’re interested in other no-subscription options, our guide to GPS trackers with no monthly fee covers the full landscape.
SIM Card Cost Breakdown
That “no subscription” advantage only works if you pick the right SIM plan. Here are the three plans we tested and recommend:
| Carrier | Monthly Cost | Data | Network | Notes |
|---|---|---|---|---|
| SpeedTalk Mobile | $5/month | 250MB | T-Mobile | GPS-specific plans available |
| Mint Mobile | $5/month (3-mo promo) | 4GB | T-Mobile | Renews at $15/month after promo |
| US Mobile | $5/month | 500MB | T-Mobile/Verizon | Custom plan builder |
The TK905 uses approximately 50MB of data per month at 30-second intervals. Any plan with 200MB or more provides a comfortable margin. SpeedTalk Mobile is the most reliable option since they specifically design plans for GPS trackers and offer GPS-specific SIM cards.
For users tracking multiple vehicles, buying SIM cards in bulk from SpeedTalk or US Mobile brings the per-device cost down to $3-4/month. That is the cheapest real-time GPS tracking available today. For more strategies on minimizing tracking costs, see our guide on the cheapest ways to GPS track a car.
Bottom Line
The TKSTAR TK905 is the cheapest way to run real-time GPS vehicle tracking if you’re willing to trade app polish for cost savings. At $95-110 for the entire first year, it costs less than six months of Tracki or LandAirSea service. Over three years, you save more than $500. Buy the TK905 if you want the lowest possible ongoing cost, you’re comfortable with basic SIM card setup, and you can live with a mediocre app (or switch to Traccar).
Skip it if you want plug-and-play simplicity or need a small, discreet tracker. For those users, our car GPS tracker guide covers options that balance cost with convenience.
As of this update, the 4G TK905 remains on sale in the ~$30-50 range (SIM not included), and it’s still the cheapest path to subscription-free real-time vehicle tracking we’ve tested. Only the 4G model is worth buying now that 2G and 3G networks have shut down.
FAQ
Does the TKSTAR TK905 require a monthly subscription?
No. The TK905 doesn't come with a mandatory subscription. You supply your own SIM card with a data plan, typically costing about $5/month from carriers like SpeedTalk Mobile or US Mobile. There are no activation fees, platform fees, or contracts tied to the device itself.
What SIM card works with the TKSTAR TK905?
The TK905 4G uses a micro-SIM with 4G LTE support. It falls back to 2G if 4G is unavailable. Any carrier that provides data service on a micro-SIM works. SpeedTalk Mobile, Mint Mobile, and US Mobile all offer compatible plans starting at $5/month with enough data for GPS tracking.
How long does the TKSTAR TK905 battery last?
The 5000mAh battery is manufacturer-listed for up to 30 days of standby. Active tracking at 30-second intervals drains the battery in 6-8 days. At 5-minute intervals, expect 10-14 days. The TK905B variant doubles the battery capacity to 10,000mAh for longer deployments.
Is the TKSTAR TK905 waterproof?
The TK905 carries an IP65 rating, which means it resists dust ingress and water jets from any direction. It handles rain, car washes, and splashing without issues. However, IP65 doesn't cover submersion. Don't mount it where standing water collects or submerge it during cleaning.
Can you use the TKSTAR TK905 to track a pet?
The TK905 isn't suitable for most pets. It weighs 180 grams and measures 90 x 72 x 22mm, making it too heavy and bulky for dogs under 30 pounds and all cats. TKSTAR makes smaller models like the TK911 for pet tracking, though battery life drops significantly on those lighter units.
How accurate is the TKSTAR TK905 GPS tracker?
Outdoor accuracy is manufacturer-listed at 10m using GPS and AGPS dual positioning. In urban areas with tall buildings, accuracy may vary around that vehicle-level range. The TK905 has no Wi-Fi or Bluetooth fallback, so indoor accuracy is poor. In parking garages and underground locations, it typically loses signal entirely.
What is the difference between TKSTAR TK905 and TK905B?
The TK905B doubles the battery capacity from 5000mAh to 10,000mAh. This extends standby beyond the standard TK905's manufacturer-listed 30 days and active tracking beyond the standard unit's roughly week-long real-time runtime. The TK905B is slightly larger and costs $10-15 more. All other features, including GPS accuracy, waterproofing, and app compatibility, are similar.
