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Head-to-head · Physical Alarm Clocks

Philips SmartSleep Wake-up Light HF3520/60 vs Philips SmartSleep Sleep and Wake-Up Light HF3650/60

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Philips SmartSleep Wake-up Light HF3520/60 #1 in Physical Alarm Clocks 9.2/10 Paid ✓ 4 of 5 features Visit Philips
Philips SmartSleep Sleep and Wake-Up Light HF3650/60 #4 in Physical Alarm Clocks 8.9/10 Paid ✓ 2 of 5 features Visit Philips

Philips SmartSleep Wake-up Light HF3520/60 leads on 0 checks, Philips SmartSleep Sleep and Wake-Up Light HF3650/60 on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePhilips SmartSleep Wake-up Light HF3520/60 · 9.2/10
  • Most featuresPhilips SmartSleep Wake-up Light HF3520/60 · 4 of 5

Philips SmartSleep Wake-up Light HF3520/60 scores higher on our rubric for physical alarm clocks: 9.2 against 8.9 out of 10; our editors rank them #1 and #4.

Philips SmartSleep Wake-up Light HF3520/60 is the better fit for sunrise waking with radio and two alarms. Philips SmartSleep Sleep and Wake-Up Light HF3650/60 is the better fit for A feature-rich sunrise and wind-down routine.

  • Philips SmartSleep Wake-up Light HF3520/60 fits best

    Sunrise waking with radio and two alarms

  • Philips SmartSleep Sleep and Wake-Up Light HF3650/60 fits best

    A feature-rich sunrise and wind-down routine

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.

Side by side

Feature Philips SmartSleep Wake-up Light HF3520/60 9.2/10 Visit ↗ Philips SmartSleep Sleep and Wake-Up Light HF3650/60 8.9/10 Visit ↗
At a glance
Editor score 9.2 8.9
Ranking #1 in Physical Alarm Clocks #4 in Physical Alarm Clocks
Best for Sunrise waking with radio and two alarms A feature-rich sunrise and wind-down routine
Pricing model Paid Paid
Starting price Not checked yet Not checked yet
Free plan — —
Free trial — —
Support Docs Docs
Features Philips SmartSleep Wake-up Light HF3520/60 4/5 · Philips SmartSleep Sleep and Wake-Up Light HF3650/60 2/5
Power backup ✓ (best) Not checked yet
Dual alarms ✓ (best) Not checked yet
FM radio ✓ ✓
Display dimming ✓ ✓
Projection rotation — —
Specs
Alarm type Sunrise Sunrise
Our review
Pros
  • Colored sunrise gradually brightens over an adjustable 20–40 minutes
  • Choose from five natural wake-up sounds or FM radio
  • Two separate alarms, plus time backup for four to eight hours
  • Gradually brightens before the alarm and dims for a sunset routine
  • Offers RelaxBreathe guidance, seven wake sounds and FM radio
  • Includes 25 brightness settings, a midnight light and device charging
Cons
  • No projection or projection rotation
  • Only documentation is listed as a support channel
  • Time backup does not establish alarm operation during an outage
  • No smartphone control or app-enabled alarm scheduler
  • Support channels are limited to documentation
  • At $199.99, it is a paid bedside-light purchase
Our verdict

A bedside lamp and alarm clock in one, the Philips SmartSleep Wake-up Light HF3520/60 is aimed at people who want light to become part of waking up, rather than relying only on a buzzer. Its colored sunrise gradually brightens over an…

Read the review →

Philips SmartSleep Sleep and Wake-Up Light HF3650/60 combines a sunrise alarm with lighting and wind-down functions for people who want a bedside routine in one device. The light gradually brightens before the alarm, and waking can use one…

Read the review →
  1. Philips SmartSleep Wake-up Light HF3520/60Physical Alarm Clocks 9.2Paid
  2. Philips SmartSleep Sleep and Wake-Up Light HF3650/60Physical Alarm Clocks 8.9Paid

Strengths and trade-offs

  • Philips SmartSleep Wake-up Light HF3520/60 — where it wins

    • Colored sunrise gradually brightens over an adjustable 20–40 minutes
    • Choose from five natural wake-up sounds or FM radio
    • Two separate alarms, plus time backup for four to eight hours

    Where it doesn't

    • No projection or projection rotation
    • Only documentation is listed as a support channel
    • Time backup does not establish alarm operation during an outage

  • Philips SmartSleep Sleep and Wake-Up Light HF3650/60 — where it wins

    • Gradually brightens before the alarm and dims for a sunset routine
    • Offers RelaxBreathe guidance, seven wake sounds and FM radio
    • Includes 25 brightness settings, a midnight light and device charging

    Where it doesn't

    • No smartphone control or app-enabled alarm scheduler
    • Support channels are limited to documentation
    • At $199.99, it is a paid bedside-light purchase
  • Philips SmartSleep Wake-up Light HF3520/609.2/10 · Paid

    A feature-rich bedside light for sunrise waking, with radio and separate alarms.

    Visit PhilipsFull verdict →
  • Philips SmartSleep Sleep and Wake-Up Light HF3650/608.9/10 · Paid

    A bedside light for gradual waking and evening routines, without app-based alarm control.

    Visit PhilipsFull verdict →

More comparisons

All physical alarm clocks comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update