Smartwatches / Compare
COROS APEX 4 vs Garmin Bounce 2
Product A: COROS
75 of 150 known
Product B: Garmin
75 of 150 known
65 of 141 fields differ
- 40 different values
- 25 known for one only
- 18 the same
- 58 missing for both
Biggest differences
Each bar uses the scale of all 101 smartwatches.
- Battery lifeA: 360hB: 48hCOROS is 7.5 times higher.
Size, drawn to scale
Front and side.
- ACOROS: 42.6 × 42.6 mm
- BGarmin: 43 × 43 mm
Weight
0 to 80 g
Weight with strap
A44g
B40.4g
All 150 fields
Every value links to where we found it.


General
7 of 10 differ
Series
Model numbers
WAPX4-BLK-42, WAPX4-WHT-42, WAPX4-BLK-46, WAPX4-WHT-46, W542, W5412Maker product pageshop.coros.com/products.jsonRead 15 October 2026US store feed SKUs WAPX4-BLK-42, WAPX4-WHT-42, WAPX4-BLK-46 and WAPX4-WHT-46 for the watch alone. The feed has no barcodes, so no GTIN is stored.14Regulatory filingfccid.co/fcc/2BBGF-W542Read 15 October 2026FCC model W542 is the 42 mm. W541 is the 46 mm.
GTIN / EAN
Not available
Not available
Announced
Status
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Launch price (EU)
Markets
Colours
Black, White1Maker product pagecoros.com/apex4/specsRead 15 October 2026The store sells white and black watch bodies, each with nylon or silicone straps in several strap colours. Stored are the body colours.2Maker product pageshop.coros.com/products.jsonRead 15 October 2026Store option WATCH BODY COLOR: White, Black.
Slate Gray, Light Purple, Turquoise1Maker product pagegarmin.com/en-US/p/1815501Read 20 October 2026
Segment
OS updates promised
Not available
Not available
Security updates until
Not available
Not available
Case
6 of 8 differ
Case size
Case shape
Case material
Fibre-reinforced polymer1Maker product pagegarmin.com/en-US/p/1815501Read 20 October 2026
Case material (as published)
Fiber Reinforced Polymer cover with Grade 5 Titanium Alloy bezel1Maker product pagecoros.com/apex4/specsRead 15 October 2026Materials: Cover Material Fiber Reinforced Polymer, Bezel Material Grade 5 Titanium Alloy.
Back
Not available
Not available
Case dimensions
Height42.6Width42.6Thickness14mm(1.7 × 1.7 × 0.6 in)1Maker product pagecoros.com/apex4/specsRead 15 October 2026Size and Weight, Dimensions: 42 mm 42.6 x 42.6 x 14 mm and 46 mm 46.2 x 46.2 x 13.7 mm. Height does not include the optical heart rate sensor. The 46 mm is thinner than the 42 mm as published. The5krunner repeats both figures.
Weight (case only)
Not available
Weight with strap
44g(1.6 oz)1Maker product pagecoros.com/apex4/specsRead 15 October 2026Weight: 42 mm 44 g with nylon band and 56 g with silicone band. 46 mm 51 g with nylon band and 64 g with silicone band. The nylon band figure is stored. The maker publishes no case-only weight.3Maker product pagecoros.com/apex4Read 15 October 2026Overview: 51 g (46 mm) and 44 g (42 mm) with the nylon band.
Durability
1 of 8 differ
Water resistance
Water resistance standard
Not available
Not available
Dust and water rating
Not available
Not available
Dive rating
Not available
Not available
Max dive depth
Not available
Not available
MIL-STD-810
Not available
Not available
MIL-STD-810 tests
Not available
Not available
Operating temperature
Display
6 of 14 differ
Display type
Display type (as published)
3rd Generation Memory-in-Pixel touch screen1Maker product pagecoros.com/apex4/specsRead 15 October 2026Display, Display Type verbatim.
Screen size
Resolution
Pixel density
Not available
Not available
Display area
Not available
Not available
Touchscreen
Max refresh rate
Not available
Not available
Min refresh rate
Not available
Not available
Peak brightness
Not available
Not available
Minimum brightness
Not available
Not available
Always-on display
Display cover
Display cover (as published)
Platform
3 of 15 differ
Platform
OS at launch
Not available
Not available
Software
Not available
Not available
Latest OS
Not available
Not available
Works with
Not available
Phone requirement
Not available
Not available
App store
Not available
Voice assistants
Not available
Garmin on-watch voice commands1Maker product pagegarmin.com/en-US/p/1815501Read 20 October 2026
Chipset
Not available
Not available
Process
Not available
Not available
CPU cores
Not available
Not available
CPU configuration
Not available
Not available
Max CPU clock
Not available
Not available
GPU
Not available
Not available
Low-power coprocessor
Not available
Not available
Memory
1 of 2 differ
RAM
Not available
Not available
Storage
Health sensors
4 of 8 differ
Heart rate sensor
Optical heart rate monitor1Maker product pagecoros.com/apex4/specsRead 15 October 2026Data Tracking: Optical Heart Rate Monitor (may not work over tattoos). The sensor generation is not named.
Not available
ECG capability
Not available
Blood oxygen sensing
Skin temperature sensing
Not available
Blood pressure feature
Not available
Not available
Body composition sensor
Not available
Not available
Skin conductance (EDA)
Not available
Not available
Medical clearances
Not available
Not available
Motion and environment sensors
4 of 9 differ
Accelerometer
Accelerometer range
Not available
Not available
Gyroscope
Barometric altimeter
Compass
Ambient light sensor
Not available
Depth gauge
Not available
Not available
Depth gauge range
Not available
Not available
Water temperature sensor
Not available
Not available
Health and fitness
3 of 5 differ
Health features
Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking1Maker product pagecoros.com/apex4/specsRead 15 October 2026Daily Features: Daily Stress, Sleep (with REM tracking), HRV, Wellness Check. Data Tracking: Optical Pulse Oximeter. Continuous heart rate is not stored because the page does not state it. The Electrical Heart Rate Sensor is for HRV and wellness checks, so no ECG is stored.7Owner's manualsupport.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-4Read 15 October 2026Sleep and Wellness Features: sleep and nap tracking, overnight HRV and wellness checks. Control Center has an Oximeter for SpO2 readings.
Fitness features
VO2 max, Training load, Recovery advice, Pool swim, Open water swim, Interval workouts, Route navigation, Turn-by-turn navigation, Trackback1Maker product pagecoros.com/apex4/specsRead 15 October 2026Training Features: EvoLab with recovery, fatigue, training load and VO2 max, Basic Interval Training, Training Plans. Navigation: Landscape and Topo map layers, turn-by-turn directions and Back-To-Start. Supported Activity Modes list Open Water and Pool Swim. Running dynamics need a COROS POD, so they are not stored.13Maker product pagecoros.com/stories/latest-news/c/get-more-from-navigationRead 15 October 2026COROS blog: Back to Start uses the GPS points logged during the activity and guides you back along the same path. The spec page lists Back-To-Start for the APEX 4 and the Using Navigation Features article lists the APEX 4.
Sport profiles
Not available
Not available
Dive modes
Not available
Not available
External sensors
Heart rate strap, Power meter1Maker product pagecoros.com/apex4/specsRead 15 October 2026Connectivity: accessories over Bluetooth. Training Features: Running Form Test requires COROS POD or POD 2. The buy page FAQ names BLE heart rate monitors and cycling power. No other sensor types are stated.4Maker product pagecoros.com/buy/apex4Read 15 October 2026FAQ: external sensors over BLE for HRM, cycling power and more.7Owner's manualsupport.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-4Read 15 October 2026The guide names no sensor types.
Not available
Safety
1 of 6 differ
Fall detection
Not available
Not available
Car crash detection
Not available
Not available
Emergency SOS
Emergency siren
Not available
Not available
Live location sharing
Positioning
3 of 3 differ
Positioning
GPS, GLONASS, Galileo, BeiDou, QZSS1Maker product pagecoros.com/apex4/specsRead 15 October 2026Geo Location, Satellite Systems: GPS, GLONASS, Galileo, Beidou, QZSS.
Dual-band GNSS
Not available
Offline maps
Yes1Maker product pagecoros.com/apex4/specsRead 15 October 2026Navigation: map layers Landscape and Topo as downloadable global maps. The setup guide downloads maps to the watch through Map Manager.7Owner's manualsupport.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-4Read 15 October 2026Maps and Navigation: download global landscape and topographic maps to the watch in the COROS app Map Manager.
Not available
Connectivity
8 of 15 differ
Bluetooth
Bluetooth version
Not available
Wi-Fi
Wi-Fi standard
Not available
Wi-Fi bands
Cellular
Network
Not available
5G bands
Not available
Not available
NFC
Contactless payments
Payment services
Not available
Not available
Ultra-wideband
Not available
Not available
Satellite
Not available
Audio
1 of 4 differ
Speaker
Microphones
Not available
Not available
Calls on the watch
Not available
Music on the watch
Yes1Maker product pagecoros.com/apex4/specsRead 15 October 2026Daily Features: Music, plays offline music when paired with supported Bluetooth headsets.4Maker product pagecoros.com/buy/apex4Read 15 October 2026FAQ: offline MP3 music is available directly from the watch.
Yes1Maker product pagegarmin.com/en-US/p/1815501Read 20 October 2026Specs tab, Music: audio downloaded from a third-party provider (Amazon Music) is stored on the watch and plays through the speaker or Bluetooth headphones. See the manual, Music chapter.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-ED045F09-4EC3-41F5-AAAC-42B3A3836894/EN-US/Bounce_2_OM_EN-US.pdfRead 20 October 2026Music chapter, page 34: download audio content to the watch from a third-party provider and play it through the speaker or Bluetooth headphones.
Controls
3 of 5 differ
Buttons
21Maker product pagecoros.com/apex4/specsRead 15 October 2026Design lists Digital Dial, Back Button and Action Button. The dial is a rotating control and is not counted in the two buttons.7Owner's manualsupport.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-4Read 15 October 2026Operating APEX 4 lists the dial, the Back/Lap button and the Action button.
Named operating buttons
Back/Lap Button, Action Button1Maker product pagecoros.com/apex4/specsRead 15 October 2026Design: Back Button and Action Button.7Owner's manualsupport.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-4Read 15 October 2026Operating APEX 4: Digital Dial (top right), Back/Lap Button (bottom right) and Action Button (bottom left).
Crown
Rotating1Maker product pagecoros.com/apex4/specsRead 15 October 2026Design: Digital Dial. The setup guide says to scroll the dial to move the selection and press to confirm. No haptic claim.7Owner's manualsupport.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-4Read 15 October 2026Digital Dial: scroll to move the selection, press to confirm.
Rotating bezel
Not available
Not available
Gestures
Not available
Raise and turn the arm to turn on the screen, Cover the screen with a palm to return to the watch face and lower the brightness2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-ED045F09-4EC3-41F5-AAAC-42B3A3836894/EN-US/Bounce_2_OM_EN-US.pdfRead 20 October 2026Touchscreen Tips, page 5: cover the screen with your palm to return to the watch face and turn down the brightness. Display and Brightness Settings, page 33: Gesture turns on the screen when you raise and turn your arm.
Battery and charging
4 of 13 differ
Battery capacity
Not available
Claimed battery life
ACOROS APEX 4
| Mode | With solar | Hours (h) |
|---|---|---|
| Smartwatch | No | 360 |
| GPS, automatic system selection | No | 41 |
| GPS, automatic system selection with music | No | 11 |
| GPS, all systems | No | 34 |
| GPS, all systems with music | No | 10 |
| GPS, dual-band | No | 26 |
| GPS, dual-band with music | No | 9 |
Source1Maker product pagecoros.com/apex4/specsRead 15 October 2026Battery table. 42 mm: Endurance All Systems 41 h (11 h with offline music), All Systems On 34 h (10 h), Dual Frequency 26 h (9 h), Daily Use 15 days. 46 mm: Endurance 65 h (17 h), All Systems On 53 h (16 h), Dual Frequency 41 h (15 h), Daily Use 24 days. Days are converted to hours exactly. The Battery Specifications article names the daily use row as sleep tracking plus daily stress. The setup guide says the Endurance preset picks satellite systems intelligently, so it is stored as GPS automatic system selection. Always-on display use in these figures is not stated. The standard GPS row is empty.3Maker product pagecoros.com/apex4Read 15 October 2026Overview: up to 65 hours of All Systems GPS on the 46 mm or 41 hours on the 42 mm, marked as Endurance Satellite Mode. Matches the spec table.9Maker product pagesupport.coros.com/hc/en-us/articles/23476623096980-Battery-SpecificationsRead 15 October 2026APEX 4 (42) table: Endurance 41 h, All Systems On / High 34 h, Dual Frequency / Max 26 h, daily use with sleep tracking and daily stress 15 days. APEX 4 (46): Endurance 65 h, All Systems 53 h, Dual Frequency 41 h, daily use 24 days. Same figures as the spec page. Actual use can be higher with backlight, navigation and accessories.
BGarmin Bounce 2
| Mode | With solar | Hours (h) |
|---|---|---|
| Smartwatch | No | 48 |
Smartwatch mode (claimed)
360h
48h
AOD battery life (up to)
Not available
Not available
GPS mode (claimed)
Not available
Not available
Solar charging
Not available
Not available
Charging method
Proprietary plug7Owner's manualsupport.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-4Read 15 October 2026Charging APEX 4: metal pins on the A2 adapter fit into the charging port on the back of the watch and snap into place. A standard USB-C cable connects to the adapter.8Owner's manualsupport.coros.com/hc/en-us/articles/41966405480340Read 15 October 2026Charging Your APEX 4: the adapter pins fit into the port on the back and the adapter takes any standard USB-C cable. Charging works during an activity.
Charging guidance
The COROS A2 charging adapter clips onto the pins on the back of the watch and takes any standard USB-C cable. COROS asks for an LPS-certified charger and official accessories only. It says not to use a battery pack with quick-charge capability. The store FAQ says 0 to 100% in under 2 hours.4Maker product pagecoros.com/buy/apex4Read 15 October 2026FAQ: 0 to 100% in under 2 hours. The box note says the USB-C charging cable is not included.8Owner's manualsupport.coros.com/hc/en-us/articles/41966405480340Read 15 October 2026Use an LPS-certified charger. Use official accessories only. Do not use a power bank with quick-charge capability.
The proprietary charging cable plugs into the watch. The other end plugs into a USB-C computer port or an AC adapter with a 5 W minimum power rating. USB charging temperature range is 0 to 45 C.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-ED045F09-4EC3-41F5-AAAC-42B3A3836894/EN-US/Bounce_2_OM_EN-US.pdfRead 20 October 2026Charging the Watch, page 37: cable to a USB-C computer port or AC adapter (5 W minimum power rating). Specifications: USB charging range 0 to 45 C.
Max charging power (watch)
Not available
Not available
Fast charging
Not available
Not available
Quick charge claim
Not available
Not available
Charge 0 to 80% (claimed)
Not available
Not available
Full charge time (claimed)
Not available
Not available
Measured
1 of 4 differ
Peak brightness (measured)
Not available
Not available
Battery life (measured)
Not available
Not available
Battery tests (measured)
Not available
Not available
Full charge time (measured)
Not available
Strap
5 of 6 differ
Lug width
Quick-release strap
Yes1Maker product pagecoros.com/apex4/specsRead 15 October 2026Strap: installation type Quick Release.
Not available
Strap system
Quick release, 22 mm on the 42 mm case and 24 mm on the 46 mm case1Maker product pagecoros.com/apex4/specsRead 15 October 2026Strap: width 22 mm (42 mm) and 24 mm (46 mm), installation type Quick Release.
Strap material
Not available
Strap
Not available
Not available
Strap sizes
ACOROS APEX 4
| Size | Wrist (min) (mm) | Wrist (max) (mm) |
|---|---|---|
| Nylon and silicone | 135 | 205 |
BGarmin Bounce 2
| Size | Wrist (min) (mm) | Wrist (max) (mm) |
|---|---|---|
| Silicone band | 115 | 180 |
Regulatory
2 of 3 differ
FCC ID
2BBGF-W542, 2BBGF-W54114Regulatory filingfccid.co/fcc/2BBGF-W542Read 15 October 2026FCC ID 2BBGF-W542 is COROS APEX 4 42mm, grant date Nov 28, 2025. Read on a public mirror of the FCC filing.15Regulatory filingfccid.co/fcc/2BBGF-W541Read 15 October 2026FCC ID 2BBGF-W541 is COROS APEX 4 46mm, grant date Nov 27, 2025.
Not available
SAR limb (US)
Not available
SAR limb (EU)
Not available
Other certifications
Not available
Not available
In the box
1 of 2 differ
In the box
COROS APEX 4 GPS Watch, COROS A2 Charging Adapter7Owner's manualsupport.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-4Read 15 October 2026What's In the Box: COROS APEX 4 GPS Watch and COROS A2 Charging Adapter. The buy page says no USB-C cable is included.
Bounce 2, Charging/data cable, Documentation1Maker product pagegarmin.com/en-US/p/1815501Read 20 October 2026In the Box tab: Bounce 2, Charging/data cable, Documentation.
Power adapter in box
Links
Not compared
Product page
Spec sheet
Manual
support.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-47Owner's manualsupport.coros.com/hc/en-us/articles/42070715941268-Set-Up-Your-COROS-APEX-4Read 15 October 2026Setup guide for the APEX 4, last edited 2026-10-14. COROS publishes no separate PDF manual.
www8.garmin.com/manuals/webhelp/GUID-ED045F09-4EC3-41F5-AAAC-42B3A3836894/EN-US/Bounce_2_OM_EN-US.pdf2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-ED045F09-4EC3-41F5-AAAC-42B3A3836894/EN-US/Bounce_2_OM_EN-US.pdfRead 20 October 2026Bounce 2 Watch Owner's Manual, July 2026 edition, M/N A05001, 50 pages. Printed page numbers are used below.
EPREL registration number
Not available
Not available
Warranty
1 of 1 differ
Manufacturer warranty (source market)
Both are also in the API. Back to all smartwatches.



















