
Garmin
Premium AMOLED multisport watch worth the money

Oppo
A week-long-battery budget smartwatch
Garmin Epix Pro (Gen 2)
Garmin Epix Pro (Gen 2)
Garmin Epix Pro (Gen 2)
Titanium-bezel adventure-watch design in 42mm, 47mm, and 51mm. Five-button + touchscreen control. Built-in LED flashlight. Sapphire crystal on Sapphire editions. Large and substantial.
Oppo Watch S
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Oppo Watch S
Oppo Watch S
The Oppo Watch S's headline is how little there is of it — a round ~45mm watch just 8.9mm thick and around 35g without the strap, built around a stainless-steel mid-frame. Reviewers say it nearly disappears on the wrist.
Garmin Epix Pro (Gen 2)
Bright, vivid AMOLED — the Epix Pro's defining feature versus the MIP-screened Fenix 7 Pro. Always-on display. Sapphire crystal on Sapphire editions.
Oppo Watch S
A 1.46-inch round AMOLED at 464 x 464 (317 ppi). It can hit a brilliant 3,000-nit peak — but only automatically, in Oppo's workout modes under strong sunlight. In everyday use it's capped at 600 nits, with a 1,500-nit high-brightness mode.
Garmin Epix Pro (Gen 2)
Elevate Gen 5 optical HR with skin temperature, SpO2, HRV Status, Body Battery, sleep tracking, Morning Report. Garmin's latest sensor generation; ECG added via update.
Oppo Watch S
For a budget watch the Oppo Watch S carries a serious sensor array — an 8-channel optical heart-rate sensor, a 16-channel SpO2 sensor, ECG electrodes and a skin-temperature sensor — anchored by a 60-second check that reads around 14 health indicators at once. ECG availability depends on regional certification.
Garmin Epix Pro (Gen 2)
Garmin's deepest training-science suite — Endurance Score, Hill Score, Training Readiness, Acute/Chronic Load, daily suggested workouts, full multisport + triathlon modes. The serious-athlete benchmark.
Oppo Watch S
The Oppo Watch S covers 100+ workout modes with built-in GPS and an AI sports coach that gauges readiness from HRV and recent training load. It's a capable everyday fitness tracker — though there's little independent accuracy testing to confirm how it stacks up.
Garmin Epix Pro (Gen 2)
Multi-day to multi-week smartwatch battery depending on size; ~31 hours multi-band GPS on the 51mm. Strong for an AMOLED watch — but a MIP Fenix lasts longer.
Oppo Watch S
The Oppo Watch S's strongest card. Oppo rates the 330mAh battery at up to 10 days maximum, 7 days typical and about 4 days with the always-on display on — and fast charging adds a full day in 10 minutes, with a complete charge in roughly 75-90 minutes.
Garmin Epix Pro (Gen 2)
Garmin OS + Garmin Connect + Connect IQ store. Garmin Pay. Works with iOS + Android. Frequent firmware updates. No Wear OS app catalog.
Oppo Watch S
The Oppo Watch S runs ColorOS Watch 7.1 on a power-efficient BES2800BP chip with 4GB of storage — not Wear OS. That choice is the reason the battery lasts a week, but it also means no Google Play app store and a simpler, more limited software experience.
Garmin Epix Pro (Gen 2)
10 ATM water resistance + MIL-STD-810 thermal/shock/water testing. Titanium bezel + Sapphire crystal (Sapphire editions). Built for serious outdoor and expedition abuse.
Oppo Watch S
The Oppo Watch S is rated 5 ATM plus IP68 (and IP69), with Splash Touch that keeps the screen usable when wet. It's fine for swimming and everyday water — but Oppo specifically warns against hot showers, saunas and diving.
Garmin Epix Pro (Gen 2)
Multi-band (dual-frequency) GPS, full-color TopoActive maps, NFC for Garmin Pay, Bluetooth, ANT+, Wi-Fi. No LTE.
Oppo Watch S
Built-in GPS, Bluetooth, Wi-Fi and NFC cover the everyday essentials. There's no cellular model, so the Oppo Watch S relies on a paired phone for connectivity.
Garmin Epix Pro (Gen 2)
$899-$1099+ launch. The AMOLED flagship multisport tier. Competes with the MIP Fenix 7 Pro, the Apple Watch Ultra, and the Coros Apex Pro. Ages well and discounts over time.
Oppo Watch S
The Oppo Watch S launched at around $399 NZD (roughly $230 USD) and is not officially sold in the US. For the price it's a strong value — week-long battery, ECG, a premium-feeling build — as long as you accept the simpler ColorOS platform.