Device summary

COROS

APEX 4 46mm

Garmin

Forerunner 265

Full specifications

Full specifications
Basic information
Release year20252023
Starting price$479
Display size1.3-inch1.3-inch
Dimensions46.2 mm × 46.2 mm × 13.7 mm46.1 mm × 46.1 mm × 12.9 mm
Weight51 g47 g
Front materialSapphire glass
Back materialFiber-reinforced polymer
Display
Display technologyMemory-in-Pixel (3rd gen MIP touch)AMOLED
Resolution260 × 260416 × 416
ProtectionSapphire glass
Performance
ChipsetAll-satellite dual-frequency GNSS
Storage32 GB
Expandable storageNo
Battery & charging
Charging standardMagnetic charging (<2 h). Daily use 24 days; all-systems GPS 53 h; dual-frequency GPS 41 h; Endurance all-systems 65 h (extended mode — not everyday life); music modes shorterGarmin proprietary clip / USB charging
Battery typeLithium-ionLithium-ion
Connectivity
CellularGPS / GLONASS / Galileo / BeiDou / QZSS (dual-frequency), Downloadable global Landscape / Topo maps, Speaker + microphone, ECG sensorGPS / multi-GNSS
Wi‑FiWi-Fi / COROS App
BluetoothBluetoothBluetooth
NFCYes
Build & durability
FrameFiber-reinforced polymer; Grade 5 titanium bezelFiber-reinforced polymer
Ingress protection5 ATM5 ATM

Key differences

The most meaningful measured gaps in size and weight — not an overall winner.

  • Thickness

    Forerunner 265

    0.8 mm thinner

  • Height

    Very similar height

  • Width

    Very similar width

  • Display size

    Very similar display size

APEX 4 46mm vs Forerunner 265 Size Comparison