Running
By price band
Trail & outdoors
Multisport & gym
Compare & decode
The quick answer
Best AMOLED for the battery
Opens Amazon.com · Prices change often
Garmin Instinct 3 – 45 mm, AMOLEDBest Garmin for a week of always-onUnder $350
Garmin Forerunner 970Best Garmin for anyone set on the brandUnder $800
COROS APEX 4Best MIP screenUnder $500Price bands, not prices
| Watch | Verdict | Who it suits | The catch | Price band and link |
|---|---|---|---|---|
 COROS PACE 4Our pick | Best AMOLED for the battery | Runners and day hikers who want a bright screen and the least charging for the money | Always-on cuts everyday battery to about a third | Under $250View on Amazon (opens in a new tab) |
| Garmin Instinct 3 – 45 mm, AMOLEDBuy | Best Garmin for a week of always-on | Garmin buyers on familiar trails who want buttons and an always-lit color screen | Breadcrumbs only, no maps | Under $350View on Amazon (opens in a new tab) |
| Garmin Forerunner 970Buy | Best Garmin for anyone set on the brand | Runners, hikers and triathletes set on Garmin who want maps, a flashlight and a bright screen | Some units register ghost touches on the touchscreen | Under $800View on Amazon (opens in a new tab) |
| COROS APEX 4Buy | Best MIP screen | Hikers and trail runners who navigate for days and want the screen always visible | MIP goes dull on map pages under trees and indoors | Under $500View on Amazon (opens in a new tab) |
 Suunto Vertical 2Buy | Best AMOLED for long trail days | Hikers and ultra runners with average or larger wrists | Heavy, and one size only | Under $600View on Amazon (opens in a new tab) |
| Garmin Enduro 4Wait | Wait: solar MIP Garmin, full battery test pending | Buyers who want a solar MIP Garmin and the fewest charges, and can wait for a full test | No full battery test yet | Under $900 |
| Garmin fēnix 9 – 47 mmWait | Wait: new AMOLED flagship, base model untested | Buyers who want a bright AMOLED flagship with maps and diving | The base model hasn't been tested; early firmware bugs on Pro units | Under $1,000 |
The old rule says MIP for battery and AMOLED for looks. The evidence says it's half wrong. Screen type no longer decides your GPS hours, at least on the makers' own ratings. COROS swapped the PACE 3's MIP screen for AMOLED on the PACE 4 and raised the rated dual-frequency hours from 15 h to 24 h with the screen lit throughout, or 31 h with always-on off. What drains an AMOLED watch is one setting, always-on. Garmin's manual gives the Instinct 3 AMOLED 18 days with wrist-turn wake and 7 days always lit, and testers and owners got almost exactly that. MIP's sunlight advantage has faded too. Testers now find bright AMOLED as easy or easier to read outdoors, while MIP goes dull indoors and under trees. So buy AMOLED and set it to wake on a wrist turn. MIP earns its place only if you want the screen showing around the clock for weeks. Milewright's pick for this choice is the COROS PACE 4, the AMOLED watch COROS rates above its own MIP predecessor in every GPS mode.
COROS PACE 4Under $250Opens Amazon.com · Prices change often
A MIP (memory-in-pixel) screen works like a printed page. It holds its image for almost no power and is lit by daylight bouncing off it. That's why it can stay on all the time and gets crisper as the sun gets stronger. It's also why it struggles where light is scarce, like a kitchen at 6 a.m. or deep forest. DC Rainmaker puts it plainly: MIP watches last longer "due to less power being required."
An AMOLED screen makes its own light, pixel by pixel. Colors are rich and you can read it in a dark room. But every lit pixel draws power, so the watch blanks or dims the screen between glances. "Always-on" keeps a dimmed face lit all day, and that's where the battery goes. Garmin's fēnix 9 manual names a second cost: burn-in is "normal behavior for AMOLED devices," and always-on "impacts the battery and display life." It advises against static images at high brightness for long periods. Calling a known wear mode normal behavior is a bold piece of copywriting.
On Garmin, every solar watch uses MIP. Choosing AMOLED also means giving up solar.
Pick the screen you enjoy, then pick the setting. AMOLED on raise-to-wake gives you color and maps you can read in the dark, with GPS hours rated to match MIP watches of its class. Switch always-on on and expect to charge two or three times as often. For most runners choosing a screen rather than a brand, that makes the PACE 4 the one to buy, in the under $250 band. It's the clearest sign on paper that AMOLED no longer means a short battery, though no one has run its GPS down to empty yet. Already set on Garmin? Then your choice is a different one, and the Forerunner 970 is the Garmin we'd buy, as our which Garmin should I get guide explains.
COROS PACE 4Under $250Opens Amazon.com · Prices change often
Far less than spec-sheet folklore suggests. The PACE 3 and PACE 4 are the nearest thing to a controlled test: same maker and software, one MIP and one AMOLED. COROS rates the MIP PACE 3, whose screen is always showing, at 15 h of dual-frequency GPS. Like for like, with its screen lit throughout, the AMOLED PACE 4 is rated at 24 h, rising to 31 h with always-on off. DC Rainmaker says the PACE 4 beats the PACE 3 in every GPS mode, though what he measured was a burn rate, not a rundown. In its most accurate mode with always-on, it burned about 4%/h, which projects to about 24 h.
I spent years on parts where you change one thing at a time or learn nothing. This pair changed the screen and the internals together. So on the ratings it suggests a modern AMOLED watch can beat an older MIP one, not that AMOLED is free; neither watch has been run to empty in dual-frequency. The cost shows up in everyday wear instead: the PACE 4's 19 days on raise-to-wake drop to 6 days with always-on.
At the top end, a big AMOLED can match MIP on the trail. On one long mountain day with dual-frequency and navigation, DC Rainmaker measured the AMOLED Suunto Vertical 2 and the MIP COROS APEX 4 both burning about 2%/h. The Suunto just needs a much heavier watch to do it.
About two-thirds of your days between charges. The Instinct 3 AMOLED is the purest case, because only one menu setting changes. Garmin claims 18 days on wrist-turn wake and 7 days always-on, and for once the box isn't flattering itself. Testers got just under 7 days with always-on. Owners with it off report 18–21 days, and TechRadar ran one down over 16 days without recording the setting. That's a week against most of three weeks, decided by a toggle.
The PACE 4 and Forerunner 970 follow the same curve; their numbers are in the evidence below. Brightness matters almost as much. The 970 lasted 2.5 days always-on at its launch default brightness. DC Rainmaker found a third of full brightness roughly doubled that. Garmin's battery tips, in its Forerunner 570 manual and other current manuals, list stopping always-on and lowering brightness. Those two settings decide whether you charge on Wednesday or next week. For hours on the move rather than days on the wrist, the GPS battery planner runs the numbers for your longest planned outing.
Not by testers' accounts anymore. DC Rainmaker found the fēnix 9 Pro's AMOLED easier to read than MIP even in Mediterranean midday sun. One of The Run Testers found the APEX 4's MIP no better in sun than AMOLED rivals. Today's panels reach 1,500 nits on the PACE 4 and 2,000 nits on the base fēnix 9. That brute force has caught MIP up outdoors.
MIP loses in poor light. Tom's Guide and DC Rainmaker both found the APEX 4 duller indoors and on map pages in low light. Still, MIP keeps its fans for a real reason: your pace is simply there, without the wrist flick. Believe in the Run prefers it for climbing and skiing.
MIP, in the owner threads behind this page. Three people returned a MIP watch over its screen. A COROS Nomad went back after three days. A PACE 3 went back at once, unreadable indoors. An Enduro 4 was swapped for an AMOLED fēnix 9 Pro because its maps were hard to read on the run. We found nobody returning an AMOLED watch over the screen itself. Traffic the other way is about charging: two Garmin owners moved to solar MIP because always-on cost too much battery. Owners who post aren't a survey, but the pattern runs one way. People leave MIP because they can't see it, and leave AMOLED because they're tired of charging it.
Price band: under $250
COROS promises 31 h of dual-frequency GPS, or 24 h with always-on. No tester has drained a PACE 4 to zero in that mode yet, but DC Rainmaker's burn rate with always-on projects to about 24 h. A marathon is finished before the battery icon starts to look worried. On raise-to-wake, TechRadar got 10–14 days with a few workouts a week. The Run Testers found the always-on screen easy to read after six months.
The catch is always-on in daily life. COROS's 6 days became 4–5 days in Tom's Guide's test: a charger on the nightstand twice a week. Leave it on raise-to-wake and the problem disappears. Weighing it against the MIP model it replaced? Our PACE 4 vs PACE 3 page settles it. We'd buy the PACE 4.
COROS PACE 4Under $250Opens Amazon.com · Prices change often
Price band: under $350
Garmin publishes battery for both screen settings, and both hold. Testers measured just under 7 days always-on, and owners with it off report 18–21 days. Standard GPS reached about 30 h against Garmin's 32 h. It runs on buttons alone, which suits gloved hands. The color screen is why people buy it; one owner coming from an Apple Watch found the Solar's MIP screen unacceptable.
Its catch is navigation. It shows a breadcrumb line, not a map, and DC Rainmaker found a multi-way trail fork turns into trial and error. If a month between charges beats color, the Instinct 3 Solar is the MIP version. For familiar trails and a week of always-on, we'd buy this one.
Garmin Instinct 3 – 45 mm, AMOLEDUnder $350Opens Amazon.com · Prices change often
Price band: under $800
Garmin rates it at 21 hours with every satellite system and multi-band on. Tom's Guide raced a 10K with always-on and saw the battery fall 4.8%/hour, which projects to about 21 hours. A marathon leaves plenty in reserve. Owners mostly get about two weeks between charges against a 15-day rating. Testers running always-on below full brightness got 4.5 days and 5.5 days.
The catch is the touchscreen on some units. The largest open thread on Garmin's 970 forum is about scrolls registering as taps. Garmin is dealing with it watch by watch. So scroll the menus hard in the first week, while you can still return it. For runners, hikers and triathletes set on Garmin who want maps and a flashlight on a bright screen, we'd buy the Forerunner 970. It's the same Garmin our which Garmin should I get guide picks for buyers loyal to the brand.
Garmin Forerunner 970Under $800Opens Amazon.com · Prices change often
Price band: under $500
COROS claims 41 h of dual-frequency GPS. No tester has yet taken an APEX 4 all the way to empty in that mode, so what exists is a burn rate. On a long mountain day with navigation running, DC Rainmaker measured about 2%/h, a pace that projects well past the 41 h claim. Tom's Guide got 12 days of near-daily running from one charge, with a third left over. The screen stays on at no cost. At 2.3 oz (64 g), it's far lighter than the AMOLED watch that burned battery at the same rate.
Its weak spot is this page's subject. In deep shade the MIP map page fades to a murky gray, just as you're squinting at a junction to pick the right fork. If you navigate for days and want the screen always visible, we'd buy the APEX 4. Our hiking with maps guide weighs the alternatives.
COROS APEX 4Under $500Opens Amazon.com · Prices change often
Price band: under $600
Suunto claims 65 h of multi-band GPS. No one has run one down in multi-band. The nearest evidence is an all-systems rundown and a multi-band burn rate that projects short of the claim. OutdoorGearLab got 66 h of continuous GPS in all-systems mode, longer than any other AMOLED watch it measured. DC Rainmaker's multi-band day, with the map up and always-on, burned about 2%/h. That rate projects to around two full days: short of the box, but still a day and a night of trail on a bright screen. Everyday wear falls short too: TechRadar charged about every 10 days, against Suunto's 20.
The catch is mass. The steel version tips the scale at 3.1 oz (87 g), in one size, and TechRadar found it cumbersome in bed. That's the price of MIP-class battery behind an AMOLED screen. For average or larger wrists on long trail days, we'd buy the Vertical 2.
Suunto Vertical 2Under $600Opens Amazon.com · Prices change often
Price band: under $900
Garmin rates this solar MIP watch at 60 h of multi-band GPS without sun and 36 days of everyday wear. The one independent test so far measured 1.4%/h and extrapolated about 70 h. Encouraging, but it's a projection, not a run to empty. One early owner swapped it for an AMOLED fēnix 9 Pro over map readability. It launched in October. Wait for a full battery test.
Price band: under $1,000
Garmin rates the base 47mm at 16 days and 30 h of GPS, with a 2,000-nit screen. The sunlit praise for its AMOLED comes from Pro units, which also crashed mid-run on early firmware. No one has tested the base 47mm's battery or GPS yet. Wait until someone does.
| WatchBuy | Screen | Our call |
|---|---|---|
| COROS PACE 4View on Amazon (opens in a new tab) | AMOLED | Buy: our overall pick |
| Garmin Instinct 3 AMOLED (45mm)View on Amazon (opens in a new tab) | AMOLED, buttons only | Buy for familiar trails |
| Garmin Forerunner 970View on Amazon (opens in a new tab) | AMOLED | Buy if you're set on Garmin |
| COROS APEX 4 (46mm)View on Amazon (opens in a new tab) | MIP | Buy for days of navigation |
| Suunto Vertical 2View on Amazon (opens in a new tab) | AMOLED | Buy for long trail days, bigger wrists |
| Garmin Enduro 4 | MIP, solar | Wait for a full test |
| Garmin fēnix 9 (47mm) | AMOLED | Wait for a base-model test |
Best AMOLED for the battery
The question used to be battery or beauty. On paper, the PACE 4 settles it. Its AMOLED screen is rated for more GPS hours than the MIP watch it replaced. With always-on off, it lasts a week or two between charges. You give up the always-lit face. In return you can read it in a dark kitchen and in July sun. Buy the bright screen and switch off always-on; you'll soon forget where the charger lives.
COROS PACE 4Under $250Opens Amazon.com · Prices change often
Research count: 8 models weighed; 5 maker manuals among them; across this site's research, 367 sources kept in full; 148 Reddit threads read, kept as the reader's summary, not in full.
| GPS mode (COROS's rating) | PACE 3, MIP | PACE 4, AMOLED | PACE 4, always-on |
|---|---|---|---|
| All systems | 25 h | 41 h | 30 h |
| Dual-frequency (most accurate) | 15 h | 31 h | 24 h |
| Everyday wear | 15 days | 19 days | 6 days |
| Watch | Wakes on wrist turn | Always-on |
|---|---|---|
| Garmin Instinct 3 AMOLED (45mm) | 18 days claimed, 18–21 days by owners | 7 days claimed and measured |
| COROS PACE 4 | 19 days claimed, 10–14 days measured | 6 days claimed, 4–5 days measured |
| Garmin Forerunner 970 | 15 days claimed, about 14 days by owners | 4.5 days and 5.5 days measured |
How we research
Milewright doesn't test watches. It sets each maker's claim against what labs, reviewers and owners measured on the exact same model, and tells you which number to believe.
By price band
Trail & outdoors
Multisport & gym
Compare & decode
Reviews
