diff --git a/firmware/os/drivers/bosch_bmi160/bosch_bmi160.c b/firmware/os/drivers/bosch_bmi160/bosch_bmi160.c
index f27a9e9..61c3d23 100644
--- a/firmware/os/drivers/bosch_bmi160/bosch_bmi160.c
+++ b/firmware/os/drivers/bosch_bmi160/bosch_bmi160.c
@@ -75,6 +75,10 @@
 #include <stdlib.h>
 #include <string.h>
 
+#define VERBOSE_PRINT(fmt, ...) do { \
+        osLog(LOG_VERBOSE, "%s " fmt, "[BMI160]", ##__VA_ARGS__); \
+    } while (0);
+
 #define INFO_PRINT(fmt, ...) do { \
         osLog(LOG_INFO, "%s " fmt, "[BMI160]", ##__VA_ARGS__); \
     } while (0);
@@ -85,13 +89,13 @@
 
 #define DEBUG_PRINT(fmt, ...) do { \
         if (DBG_ENABLE) {  \
-            INFO_PRINT(fmt,  ##__VA_ARGS__); \
+            osLog(LOG_DEBUG, "%s " fmt, "[BMI160]", ##__VA_ARGS__); \
         } \
     } while (0);
 
 #define DEBUG_PRINT_IF(cond, fmt, ...) do { \
         if ((cond) && DBG_ENABLE) {  \
-            INFO_PRINT(fmt,  ##__VA_ARGS__); \
+            osLog(LOG_DEBUG, "%s " fmt, "[BMI160]", ##__VA_ARGS__); \
         } \
     } while (0);
 
@@ -1313,7 +1317,7 @@
 {
     TDECL();
 
-    INFO_PRINT("accPower: on=%d, state=%" PRI_STATE "\n", on, getStateName(GET_STATE()));
+    VERBOSE_PRINT("accPower: on=%d, state=%" PRI_STATE "\n", on, getStateName(GET_STATE()));
     if (trySwitchState(on ? SENSOR_POWERING_UP : SENSOR_POWERING_DOWN)) {
         if (on) {
             // set ACC power mode to NORMAL
@@ -1336,7 +1340,7 @@
 static bool gyrPower(bool on, void *cookie)
 {
     TDECL();
-    INFO_PRINT("gyrPower: on=%d, state=%" PRI_STATE "\n", on, getStateName(GET_STATE()));
+    VERBOSE_PRINT("gyrPower: on=%d, state=%" PRI_STATE "\n", on, getStateName(GET_STATE()));
 
     if (trySwitchState(on ? SENSOR_POWERING_UP : SENSOR_POWERING_DOWN)) {
         if (on) {
@@ -1369,7 +1373,7 @@
 static bool magPower(bool on, void *cookie)
 {
     TDECL();
-    INFO_PRINT("magPower: on=%d, state=%" PRI_STATE "\n", on, getStateName(GET_STATE()));
+    VERBOSE_PRINT("magPower: on=%d, state=%" PRI_STATE "\n", on, getStateName(GET_STATE()));
     if (trySwitchState(on ? SENSOR_POWERING_UP : SENSOR_POWERING_DOWN)) {
         if (on) {
             // set MAG power mode to NORMAL
@@ -1665,7 +1669,7 @@
     TDECL();
     int odr, osr = 0;
     int osr_mode = 2; // normal
-    INFO_PRINT("gyrSetRate: rate=%ld, latency=%lld, state=%" PRI_STATE "\n",
+    VERBOSE_PRINT("gyrSetRate: rate=%ld, latency=%lld, state=%" PRI_STATE "\n",
                rate, latency, getStateName(GET_STATE()));
 
     if (trySwitchState(SENSOR_CONFIG_CHANGING)) {
@@ -1732,7 +1736,7 @@
     if (rate == SENSOR_RATE_ONCHANGE)
         rate = SENSOR_HZ(100);
 
-    INFO_PRINT("magSetRate: rate=%ld, latency=%lld, state=%" PRI_STATE "\n",
+    VERBOSE_PRINT("magSetRate: rate=%ld, latency=%lld, state=%" PRI_STATE "\n",
                rate, latency, getStateName(GET_STATE()));
 
     if (trySwitchState(SENSOR_CONFIG_CHANGING)) {
@@ -3922,7 +3926,7 @@
     // XXX: this consumes too much memeory, need to optimize
     T(mDataSlab) = slabAllocatorNew(slabSize, 4, 20);
     if (!T(mDataSlab)) {
-        INFO_PRINT("slabAllocatorNew() failed\n");
+        ERROR_PRINT("slabAllocatorNew() failed\n");
         return false;
     }
     T(mWbufCnt) = 0;
diff --git a/firmware/os/drivers/rohm_rpr0521/rohm_rpr0521.c b/firmware/os/drivers/rohm_rpr0521/rohm_rpr0521.c
index 8f2f16a..3fb6ee8 100644
--- a/firmware/os/drivers/rohm_rpr0521/rohm_rpr0521.c
+++ b/firmware/os/drivers/rohm_rpr0521/rohm_rpr0521.c
@@ -143,6 +143,10 @@
         osLog(LOG_INFO, "[Rohm RPR-0521] " fmt, ##__VA_ARGS__); \
     } while (0);
 
+#define ERROR_PRINT(fmt, ...) do { \
+        osLog(LOG_ERROR, "[Rohm RPR-0521] " fmt, ##__VA_ARGS__); \
+    } while (0);
+
 #define DEBUG_PRINT(fmt, ...) do { \
         if (enable_debug) {  \
             osLog(LOG_INFO, "[Rohm RPR-0521] " fmt, ##__VA_ARGS__); \
@@ -298,7 +302,7 @@
 
     osEnqueuePrivateEvt(EVT_SENSOR_I2C, cookie, NULL, mTask.tid);
     if (err != 0)
-        INFO_PRINT("i2c error (tx: %d, rx: %d, err: %d)\n", tx, rx, err);
+        ERROR_PRINT("i2c error (tx: %d, rx: %d, err: %d)\n", tx, rx, err);
 }
 
 static void alsTimerCallback(uint32_t timerId, void *cookie)
@@ -385,7 +389,7 @@
 
 static bool sensorPowerAls(bool on, void *cookie)
 {
-    DEBUG_PRINT("sensorPowerAls: %d\n", on);
+    VERBOSE_PRINT("sensorPowerAls: %d\n", on);
 
     if (on && !mTask.alsTimerHandle) {
         mTask.alsTimerHandle = timTimerSet(ROHM_RPR0521_ALS_TIMER_DELAY, 0, 50, alsTimerCallback, NULL, false);
@@ -411,7 +415,7 @@
     if (rate == SENSOR_RATE_ONCHANGE)
         rate = ROHM_RPR0521_DEFAULT_RATE;
 
-    DEBUG_PRINT("sensorRateAls: rate=%ld Hz latency=%lld ns\n", rate/1024, latency);
+    VERBOSE_PRINT("sensorRateAls: rate=%ld Hz latency=%lld ns\n", rate/1024, latency);
 
     return sensorSignalInternalEvt(mTask.alsHandle, SENSOR_INTERNAL_EVT_RATE_CHG, rate, latency);
 }
@@ -434,7 +438,7 @@
 
 static bool sensorPowerProx(bool on, void *cookie)
 {
-    DEBUG_PRINT("sensorPowerProx: %d\n", on);
+    VERBOSE_PRINT("sensorPowerProx: %d\n", on);
 
     if (on) {
         extiClearPendingGpio(mTask.pin);
@@ -461,7 +465,7 @@
     if (rate == SENSOR_RATE_ONCHANGE)
         rate = ROHM_RPR0521_DEFAULT_RATE;
 
-    DEBUG_PRINT("sensorRateProx: rate=%ld Hz latency=%lld ns\n", rate/1024, latency);
+    VERBOSE_PRINT("sensorRateProx: rate=%ld Hz latency=%lld ns\n", rate/1024, latency);
 
     return sensorSignalInternalEvt(mTask.proxHandle, SENSOR_INTERNAL_EVT_RATE_CHG, rate, latency);
 }
@@ -475,8 +479,6 @@
 {
     struct I2cTransfer *xfer;
 
-    DEBUG_PRINT("sensorCfgDataProx");
-
     int32_t offset = *(int32_t*)data;
 
     INFO_PRINT("Received cfg data: %d\n", (int)offset);
diff --git a/firmware/os/drivers/synaptics_s3708/synaptics_s3708.c b/firmware/os/drivers/synaptics_s3708/synaptics_s3708.c
index df1afce..62f364a 100644
--- a/firmware/os/drivers/synaptics_s3708/synaptics_s3708.c
+++ b/firmware/os/drivers/synaptics_s3708/synaptics_s3708.c
@@ -76,10 +76,11 @@
 
 #define ENABLE_DEBUG 0
 
+#define VERBOSE_PRINT(fmt, ...) osLog(LOG_VERBOSE, "[DoubleTouch] " fmt, ##__VA_ARGS__)
 #define INFO_PRINT(fmt, ...) osLog(LOG_INFO, "[DoubleTouch] " fmt, ##__VA_ARGS__)
 #define ERROR_PRINT(fmt, ...) osLog(LOG_ERROR, "[DoubleTouch] " fmt, ##__VA_ARGS__)
 #if ENABLE_DEBUG
-#define DEBUG_PRINT(fmt, ...) INFO_PRINT(fmt, ##__VA_ARGS__)
+#define DEBUG_PRINT(fmt, ...)  osLog(LOG_DEBUG, "[DoubleTouch] " fmt, ##__VA_ARGS__)
 #else
 #define DEBUG_PRINT(fmt, ...) ((void)0)
 #endif
@@ -303,7 +304,7 @@
     bool ret;
     size_t i;
 
-    INFO_PRINT("gesture: %d", enable);
+    VERBOSE_PRINT("gesture: %d", enable);
 
     // Cancel any pending I2C transactions by changing the callback state
     for (i = 0; i < ARRAY_SIZE(mTask.transfers); i++) {
@@ -360,7 +361,7 @@
 {
     uint32_t enabledSeconds, proxEnabledSeconds, proxFarSeconds;
 
-    INFO_PRINT("power: %d", on);
+    VERBOSE_PRINT("power: %d", on);
 
     if (on) {
         mTask.stats.enabledTimestamp = sensorGetTime();
@@ -371,7 +372,7 @@
     enabledSeconds = U64_DIV_BY_U64_CONSTANT(mTask.stats.totalEnabledTime, 1000000000);
     proxEnabledSeconds = U64_DIV_BY_U64_CONSTANT(mTask.stats.totalProxEnabledTime, 1000000000);
     proxFarSeconds = U64_DIV_BY_U64_CONSTANT(mTask.stats.totalProxFarTime, 1000000000);
-    INFO_PRINT("STATS: enabled %02" PRIu32 ":%02" PRIu32 ":%02" PRIu32
+    VERBOSE_PRINT("STATS: enabled %02" PRIu32 ":%02" PRIu32 ":%02" PRIu32
                ", prox enabled %02" PRIu32 ":%02" PRIu32 ":%02" PRIu32
                ", prox far %02" PRIu32 ":%02" PRIu32 ":%02" PRIu32
                ", prox *->f %" PRIu32
diff --git a/firmware/os/drivers/vsync/vsync.c b/firmware/os/drivers/vsync/vsync.c
index 68147b0..9d76759 100644
--- a/firmware/os/drivers/vsync/vsync.c
+++ b/firmware/os/drivers/vsync/vsync.c
@@ -49,6 +49,10 @@
 #error "VSYNC_IRQ is not defined; please define in variant.h"
 #endif
 
+#define VERBOSE_PRINT(fmt, ...) do { \
+        osLog(LOG_VERBOSE, "%s " fmt, "[VSYNC]", ##__VA_ARGS__); \
+    } while (0);
+
 #define INFO_PRINT(fmt, ...) do { \
         osLog(LOG_INFO, "%s " fmt, "[VSYNC]", ##__VA_ARGS__); \
     } while (0);
@@ -149,7 +153,7 @@
 
 static bool vsyncPower(bool on, void *cookie)
 {
-    INFO_PRINT("power %d\n", on);
+    VERBOSE_PRINT("power %d\n", on);
 
     if (on) {
         extiClearPendingGpio(mTask.pin);
@@ -171,13 +175,13 @@
 
 static bool vsyncSetRate(uint32_t rate, uint64_t latency, void *cookie)
 {
-    INFO_PRINT("setRate\n");
+    VERBOSE_PRINT("setRate\n");
     return sensorSignalInternalEvt(mTask.sensorHandle, SENSOR_INTERNAL_EVT_RATE_CHG, rate, latency);
 }
 
 static bool vsyncFlush(void *cookie)
 {
-    INFO_PRINT("flush\n");
+    VERBOSE_PRINT("flush\n");
     return osEnqueueEvt(sensorGetMyEventType(SENS_TYPE_VSYNC), SENSOR_DATA_EVENT_FLUSH, NULL);
 }
 
diff --git a/firmware/os/drivers/window_orientation/window_orientation.c b/firmware/os/drivers/window_orientation/window_orientation.c
index 067649a..c81d8a6 100644
--- a/firmware/os/drivers/window_orientation/window_orientation.c
+++ b/firmware/os/drivers/window_orientation/window_orientation.c
@@ -34,6 +34,10 @@
 
 #define LOG_TAG "[WO]"
 
+#define LOGV(fmt, ...) do { \
+        osLog(LOG_VERBOSE, LOG_TAG " " fmt,  ##__VA_ARGS__);  \
+    } while (0);
+
 #define LOGW(fmt, ...) do { \
         osLog(LOG_WARN, LOG_TAG " " fmt,  ##__VA_ARGS__);  \
     } while (0);
@@ -618,7 +622,7 @@
         rotation_changed = add_samples(ev);
 
         if (rotation_changed) {
-            LOGI("rotation changed to: ******* %d *******\n",
+            LOGV("rotation changed to: ******* %d *******\n",
                  (int)mTask.proposed_rotation);
 
             // send a single int32 here so no memory alloc/free needed.
diff --git a/firmware/os/inc/seos.h b/firmware/os/inc/seos.h
index 7b17889..7979d76 100644
--- a/firmware/os/inc/seos.h
+++ b/firmware/os/inc/seos.h
@@ -270,10 +270,11 @@
 
 /* Logging */
 enum LogLevel {
-    LOG_ERROR = 'E',
-    LOG_WARN  = 'W',
-    LOG_INFO  = 'I',
-    LOG_DEBUG = 'D',
+    LOG_ERROR   = 'E',
+    LOG_WARN    = 'W',
+    LOG_INFO    = 'I',
+    LOG_DEBUG   = 'D',
+    LOG_VERBOSE = 'V',
 };
 
 void osLogv(char clevel, uint32_t flags, const char *str, va_list vl);
diff --git a/firmware/os/platform/stm32/platform.c b/firmware/os/platform/stm32/platform.c
index befafe9..313f1bd 100644
--- a/firmware/os/platform/stm32/platform.c
+++ b/firmware/os/platform/stm32/platform.c
@@ -110,7 +110,7 @@
 
 #ifdef DEBUG_LOG_EVT
 #ifndef EARLY_LOG_BUF_SIZE
-#define EARLY_LOG_BUF_SIZE      1024
+#define EARLY_LOG_BUF_SIZE      2048
 #endif
 #define HOSTINTF_HEADER_SIZE    4
 uint8_t *mEarlyLogBuffer;