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Back up from the phone the watch is paired to: open Galaxy Wearable > Watch settings > Accounts and backup, check Last backed up, and run the backup through Smart Switch. Confirm that the timestamp has changed before you start the update. If a reset or new setup is ever needed, you restore from that backup during watch setup. Menu labels vary by model, software version and region, so follow what your own Galaxy Wearable app shows.
Should you back up before every update?
It is sensible, but it is not because updates are known to wipe watches. Samsung’s update guide says the watch reboots during installation and doesn’t say ordinary updates erase data. No published figure for update-related data loss turned up in Samsung’s support pages, so treat a backup as cheap insurance rather than a response to a quantified risk.
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Back up the watch before updating
- Keep the watch paired with its phone and open Galaxy Wearable.
- Tap Watch settings, then Accounts and backup.
- Look at Last backed up. Don’t assume an automatic copy is recent.
- Tap Open Smart Switch, grant the permissions requested, and let the backup finish.
- If Save backup to Samsung Cloud is shown, turn it on.
- Return to the screen and confirm that Last backed up now shows the current time. A toggle being on is not proof that a backup exists.
These steps follow Samsung’s US backup guide.
Why the automatic backup may not have run
Samsung’s US page says a scheduled backup only happens when all of these are true:
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- more than 24 hours have passed since the last backup;
- the phone is on Wi-Fi with more than 30% battery;
- the watch has more than 15% battery;
- both screens are off.
A watch that is rarely charged overnight or a phone that is often off Wi-Fi can go a long time without a fresh copy, which is why the manual step matters.
#1 Best Overall
2 Pack for Samsung Galaxy Watch Charger Compatible with Watch 8/8 Classic | for Samsung Watch Ultra/7/6/6 Classic/5/5 Pro/4/4 Classic/3/Active/FE USB A Parallel Cables Magnetic (Not for 9/Ultra 2)
- 👉2-Pack Convenient Spare Charger: Comes with 2 chargers in one pack, which can be used in various ways. Long, lightweight and compact enough fit in travel, home and office, such as night stand, desk, end table, car, camper and motorhome etc. You can carry it in your bag at any time in case you forget an extra charger
- 👉Wide Compatibility: Autallgee smart watch charger is compatible with Samsung Watch such as 8, 8 Classic, Ultra, 7, 6, 6 Classic, 5, 5 Pro, 4, 4 Classic, 3, as well as Active 2, Active, FE. [Watch 8(40mm/44mm), Watch 8 Classic(46mm), Watch Ultra (47mm), Watch 7 (40mm/44mm), Watch 6 (40mm/44mm), Watch 6 Classic (43mm/47mm), Watch 5 Pro (45mm), Watch 5 (40mm/44mm), Watch 4 (40mm/44mm), Watch 4 Classic (42mm/46mm), Watch 3 (41mm/45mm), Watch Active 2 (40mm/44mm), Watch Active 1 (40mm), FE(40mm) ]. 【Note: Not compatible with Samsung Watch 9/Ultra 2, Galaxy Gear S and Galaxy Fit】
- 🌳【Carbonfree Certified】Autallgee watch charging cables are Carbonfree Certified. Carbonfree Certified by ClimeCo, which certifies consumer products based on a cradle-to-grave assessment to determine the carbon footprint of the product and associated carbon emission reductions. Everyone contributes to the world’s carbon emission problems
- 👉Safe Charging: Build-in short-circuit protection IC in this charger to avoid overvoltage and overcurrent, also premium quality copper wire ensure charging Samsung Galaxy Watch to full 100% safety and reliability. Please Note: (1) Use only a standard 5V power adapter. (2) Ensure the adapter is safety-certified. (3) Operate the product in a dry, room-temperature environment.
- 👉Precise & Strong Magnet: builting-in magnet charging module, the magnet was strong enough, holds your watch in place precisely and automatically without any hassle. Charge at a touch,that's simple
What is and isn’t backed up
| Included (Samsung US) | Not guaranteed |
|---|---|
| Preinstalled app data and settings | Music saved on the watch |
| Downloaded apps | Some exceptionally large files |
| Watch face settings (current, customized, recently used) | Some data when moving from a Tizen watch to a Wear OS watch such as Galaxy Watch6 |
| App and widget settings, including home-screen layouts | |
| System settings such as display and sound/vibration |
Samsung’s data-loss guide states that music saved on the watch cannot be backed up, though songs on your phone can be transferred to the watch again manually. Its backup guide cautions that some exceptionally large files may not be backed up. If you keep irreplaceable files on the watch, copy them elsewhere first.
Run the update
- From the phone: on Galaxy Watch3 and newer, go to Galaxy Wearable > Watch settings > Watch software update > Download and install. Labels differ on some models.
- From a Wear OS watch: open Settings > Software update and check for updates.
The watch reboots during installation, so keep it charged and near the phone. Source: Samsung’s update guide.
Rank #2
Sinoacc Charger for Samsung Galaxy Watch 8/7/6/6 Classic/5/5 Pro/4/4 Classic/3/Active 2/Active 1/Ultra/Fe Galaxy Watch Charger 3.3Ft USB Magnetic Wireless Charging Cable Cord
- Proven Compatibility: Compatible with Samsung Galaxy Watch Watch 8┃Ultra 47mm (SM-L705U)┃Watch 7 40mm (SM-L300NZ)┃Watch 7 44mm (SM-L310NZ)┃Watch FE 40mm (SM-R861)┃Watch 6 40mm(SM-R930)┃Watch 6 44mm (SM-R940)┃Watch 6 Classic 43mm (SM-R950)┃Watch 6 Classic 47mm (SM-R960)┃Watch 5 Pro 45mm (SM-R920)┃Watch 5 40mm (SM-R900)┃Watch 5 44mm (SM-R910)┃Watch 4 40mm (SM-R860)┃Watch 4 44mm (SM-R870)┃Watch 4 Classic 42mm (SM-R880)┃Watch 4 Classic 46mm (SM-R890)┃Watch 3 41mm (SM-R850)┃Watch 3 45mm (SM-R840)┃Active 2 40mm (SM-R830)┃Active 2 44mm (SM-R820)┃Active 1 40mm (SM-R500). Not for Galaxy watch (released in 2018) and Gear S2/S3/S4
- Fast Charging Speed: Intended for your Galaxy Watch 8/7/6/5/4/3,fast charging speed,do not worry this replacement charging cable is wasting precious time
- Enhanced Durability: With 6000+ bend lifespan and reinforced cable joint, this replacement charger for samsung galaxy watch is more than ready to handle the stresses and strains of daily use
- Safety & Reliability: Charging Cord includes built-in over-current, over-voltage, short-circuit and over-temperature protection.Premium Quality Copper Wire and Pin Cold-Plated ensure charging safety and reliability
- What You Get: 1 pack 3.3Ft(1M) replacement charger for Galaxy Watch 8/ultra/7/6/5/4/3,our 12-month customer support and 24-hour friendly customer service
Restore from a backup
- During setup, connect the watch to the phone through Galaxy Wearable.
- In Smart Switch, select the available backup.
- Follow the prompts.
- Check the final recovered-items screen to see what came back.
For some software versions, Samsung’s general guide describes a route inside Galaxy Wearable: Watch settings > Account and backup > Restore (or Restore data). Use whichever your app offers. Afterward, re-add anything excluded above, such as music.
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Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Differences by model and region
- Wear OS watches are backed up from the paired phone. Samsung says some configurations, such as a watch not set up with a phone, offer backup and restore on the watch with a Samsung account (US guide). Older products such as Gear Fit2 and Fit2 Pro have their own limits.
- Japan: Samsung’s Japanese page, updated 2026-08-03, describes manual backup differences between Galaxy Watch9/Watch Ultra2 and Watch4–Watch8/Watch Ultra. It says Watch9 and Watch Ultra2 don’t support automatic backups and need manual backup and restore. Treat that as Japan-market information and check your own model and app version elsewhere.
- Smart Switch: the Japanese page notes that uninstalling it can delete the backup. Where that applies, keep it installed until you’ve restored.
Samsung’s UK guidance also says that reconnecting a watch to a new phone can reset data depending on model and software, so back up before that too.
Quick Recap
Best Value
Clolasa 2 Pack for Samsung Galaxy Watch Charger Compatible with Galaxy Watch 8/8 Classic/7/Ultra/6/6 Classic/5/5 Pro/4/4 Classic/3/Active 2/Active USB-C Magnetic Charging Dock Accessories 3.3FT
- USB C Connector：The Samsung Galaxy Watch Charger can be plugged directly into any USB C charging port, meet your different needs, only needs 2-3 hours to charge your device fully
- Wide Compability： The charger for samsung watch is widely compatible with Samsung Galaxy Watch 6/ Watch 6 Classic/ Galaxy Watch 5 40mm 44mm/ Watch 5 pro 45mm / Galaxy Watch 4 40mm 44mm/ 4 Classic 42mm 46mm/ Galaxy Watch 3 41mm 45mm/ Active 2 / 1, compatible with all of the galaxy seires watch
- Compact & Portable：The samsung smart watch charger has a lightweight and slim design, it fits even in your smaller pocket. whether at home or traveling, be your nice on-the-go companion
- Durable & Safe：Over-current,over-voltage,short circuit,and over-temperature protection chip included, provides you a safe environment for charging, premium material have a longer service life,flexible and durable
- What You Get：2 x Type C charger for Galaxy Watch
Rank #4
Watch Charger Compatible for Samsung Galaxy Watch 8/8 Classic, 7/6/Ultra, 5/5 Pro/4/4/6 Classic/3/Active 2/1, Magnetic Wall Fast Charging Adapter & Cable, Magnetic Wireless Charging Cable 3.3FT
- 【Complete Charging Kit for Daily Use】 This charging set includes a 3.3FT/1M magnetic charging cable and a 5V 1A USB power adapter, providing a convenient replacement charger solution for your Samsung Galaxy Watch. Ideal for bedroom, office, travel, and everyday charging needs.
- 【Safe & Stable Overnight Charging】 Designed with a reliable 5V 1A output, this charger provides steady power for your smartwatch. The stable charging performance makes it a great choice for overnight charging on your bedside table, helping keep your watch ready for the next day.
- 【Secure Magnetic Connection】 The magnetic charging puck automatically aligns with your Galaxy Watch for a simple and secure connection. Just place your watch on the charger and enjoy a convenient charging experience before bedtime.
- 【Perfect 3.3FT/1M Cable Length】 The 1-meter charging cable provides comfortable reach from bedside tables, nightstands, desks, and other common charging locations. Keep your charging area neat while enjoying flexible placement.
- 【Wide Compatibility with Galaxy Watch Series】 Compatible with Samsung Galaxy Watch 8, Galaxy Watch7, Galaxy Watch6 Classic, Galaxy Watch6, Galaxy Watch5 Pro, Galaxy Watch5, Galaxy Watch4 Classic, and Galaxy Watch4. Please check your watch model before purchase.
Rank #3
for Samsung Watch Charger Galaxy Charger Fast Charging Compatible with Galaxy Watch 8/8 Classic/7/6/6 Classic/5/5 Pro/4/4 Classic/3/Active Ultra/Active 2 Adapter Magnetic Wireless Charging Cable 3.3FT
- for galaxy watch charger Compatibility: Galaxy Watch 8/8 Classic/7/6/6 Classic/5/5 Pro/4/4 Classic/3/ Active Ultra/Active 2
- This 3.3Ft Watch fe charging cable is convenient to carry around, especially for traveling,and is suitable as a backup charger for cargador de reloj samsung galaxy watch .
- for galaxy watch 7 charger Advance Safety:-Built-in safeguards with over-current, over-voltage, short-circuit and over-temperature protection and other safety features. Guards your device battery against overcharge damage.
- for galaxy watch 6 charger Safe and Fast Watch Charging- Our charger provides a safer and faster charging mode, for a more perfect charging experience,Please take off the watch case.
- Considerate service of one-year warranty and thirty-day return and refund, provides you with perfect shopping experience.
Checklist
- Watch paired; Galaxy Wearable open.
- Smart Switch backup run manually; Last backed up shows now.
- Samsung Cloud saving enabled if offered.
- Smart Switch left installed.
- Watch and phone charged; update started only afterward.
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